Pexip security bulletins

The following security bulletins are published by Pexip for issues affecting Pexip Infinity and Infinity Connect.

Please contact your Pexip authorized support representative for more information about these issues. This list covers issues addressed in v27.0 and later. For issues addressed in v26.x or earlier, see our documentation for previous releases.

More information specific for each of the vulnerabilities can be found via the NIST National Vulnerability Database: http://nvd.nist.gov/.

Pexip Infinity

Each bulletin addresses a number of vulnerabilities in the operating system software used by Pexip Infinity. The bulletins include an assessment of the issues, the impact to the Pexip Infinity platform, and resolution details.

Bulletin Description Risk Updated Impacted versions Addressed in version
CVE-2021-0707 In dma_buf_release of dma-buf.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: AndroidVersions: Android kernelAndroid ID: A-155756045References: Upstream kernel. High July 2022 All before 29 29.0
CVE-2021-39698 In aio_poll_complete_work of aio.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: AndroidVersions: Android kernelAndroid ID: A-185125206References: Upstream kernel. High July 2022 All before 29 29.0
CVE-2022-1011 A use-after-free flaw was found in the Linux kernel’s FUSE filesystem in the way a user triggers write(). This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation. High July 2022 All before 29 29.0
CVE-2022-1729 A use-after-free flaw was found in the Linux kernel's performance events subsystem allowing a local user to crash the system. High July 2022 13-28.x 29.0
CVE-2022-1786 A use-after-free flaw was found in the Linux kernel’s io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw allows a local user to crash or escalate their privileges on the system. High July 2022 26-28.x 29.0
CVE-2022-27666 A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c. This flaw allows a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation threat. High July 2022 21-28.x 29.0
CVE-2022-29581 Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14 and later versions. High July 2022 21-28.x 29.0
CVE-2022-29582 In the Linux kernel before 5.17.3, fs/io_uring.c has a use-after-free due to a race condition in io_uring timeouts. This can be triggered by a local user who has no access to any user namespace; however, the race condition perhaps can only be exploited infrequently. High July 2022 26-28.x 29.0
CVE-2022-30594 The Linux kernel before 5.17.2 mishandles seccomp permissions. The PTRACE_SEIZE code path allows attackers to bypass intended restrictions on setting the PT_SUSPEND_SECCOMP flag. High July 2022 13-28.x 29.0
CVE-2018-25032 zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches. High July 2022 All before 29 29.0
CVE-2022-36434 Insufficient input validation in the Pexip Client API implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service. High July 2022 28.x 29.0
CVE-2022-34490 Insufficient input validation in the RTP implementation allows a malicious attacker to trigger a software abort resulting in a denial of service. High July 2022 9.0 - 28.2 29.0
CVE-2022-32956 Improper access control in the Infinity Management API allows a malicious attacker to escalate privileges when certificate based authentication is enabled. High July 2022 5.5 - 28.2 29.0
Multiple

Resolved minor issues: CVE-2021-45452, CVE-2021-45868, CVE-2022-0494, CVE-2022-0850, CVE-2022-0854, CVE-2022-1012, CVE-2022-1016, CVE-2022-1055, CVE-2022-1271, CVE-2022-1353, CVE-2022-1664, CVE-2022-1972, CVE-2022-1998, CVE-2022-2068, CVE-2022-2078, CVE-2022-20153, CVE-2022-21499, CVE-2022-28614, CVE-2022-29824, CVE-2022-31813, CVE-2022-32250

  July 2022   29.0
CVE-2022-32263 Insufficient input validation in the G.719 codec implementation allows a malicious attacker to trigger a software abort resulting in a denial of service. High June 2022 13.0 - 28.0 28.1
CVE-2022-29286 Resource mismanagement in the registrar allows an unauthenticated remote attacker to cause the system to consume excess resources and eventually terminate, resulting in a denial of service. High April 2022 27.0, 27.1, 27.2, 27.3 28.0
CVE-2022-27936 Insufficient input validation in the H.323 protocol implementation allows an unauthenticated remote attacker to trigger a software abort resulting in a denial of service. High April 2022 1 - 27.3 28.0
CVE-2022-25315 In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames. Critical April 2022 1 - 27.3 28.0
CVE-2022-25314 In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString. High April 2022 1 - 27.3 28.0
CVE-2022-25236 xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs. Critical April 2022 1 - 27.3 28.0
CVE-2022-25235 xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context. Critical April 2022 1 - 27.3 28.0
CVE-2022-23990 Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function. Critical April 2022 1 - 27.3 28.0
CVE-2022-23852 Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES. Critical April 2022 1 - 27.3 28.0
CVE-2022-23308 valid.c in libxml2 before 2.9.13 has a use-after-free of ID and IDREF attributes. High April 2022 1 - 27.3 28.0
CVE-2022-22827 storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. High April 2022 1 - 27.3 28.0
CVE-2022-22826 nextScaffoldPart in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. High April 2022 1 - 27.3 28.0
CVE-2022-22825 lookup in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. High April 2022 1 - 27.3 28.0
CVE-2022-22824 defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. Critical April 2022 1 - 27.3 28.0
CVE-2022-22823 build_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. Critical April 2022 1 - 27.3 28.0
CVE-2022-22822 addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. Critical April 2022 1 - 27.3 28.0
CVE-2022-0847 A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system. High April 2022 1 - 27.3 28.0
CVE-2022-0492 A vulnerability was found in the Linux kernel’s cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly. High April 2022 1 - 27.3 28.0
CVE-2021-46143 In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize. High April 2022 1 - 27.3 28.0
CVE-2021-45960 In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory). High April 2022 1 - 27.3 28.0
CVE-2021-45485 In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses. High April 2022 1 - 27.3 28.0
CVE-2021-22600 A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755 High April 2022 1 - 27.3 28.0
CVE-2021-4154 A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system. High April 2022 1 - 27.3 28.0
CVE-2021-4083 A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4. High April 2022 1 - 27.3 28.0
CVE-2018-25032 zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches. High April 2022 1 - 27.3 28.0
Multiple Resolved minor issues: CVE-2019-15165, CVE-2019-20807, CVE-2021-3770, CVE-2021-3778, CVE-2021-3796, CVE-2021-3997, CVE-2021-4001, CVE-2021-4203, CVE-2021-28965, CVE-2021-31799, CVE-2021-31810, CVE-2021-32066, CVE-2021-41817, CVE-2021-41819, CVE-2021-45402, CVE-2021-45486, CVE-2022-0286, CVE-2022-0617, CVE-2022-0644, CVE-2022-22816, CVE-2022-25313, CVE-2022-25636   April 2022   28.0
CVE-2022-27937

Insufficient input validation in the H.264 codec implementation allows an unauthenticated remote attacker to trigger excess resource consumption leading to a software abort and denial of service.

High March 2022 1.0 - 27.2 27.3
CVE-2022-27935 Insufficient input validation in the Epic Telehealth implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service. High March 2022 25.0 - 27.2 27.3
CVE-2022-27934

Insufficient input validation in the Hypertext Transfer Protocol implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service.

High March 2022 25.0 - 27.2 27.3
CVE-2022-27933 Insufficient input validation in the One Touch Join service allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service. In certain circumstances, the attacker is also able to enumerate OTJ endpoint usernames. High March 2022 24.0 - 27.2 27.3
CVE-2022-27932 Insufficient input validation in the One Touch Join service allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service. High March 2022 24.0 - 27.2 27.3
CVE-2022-27931

Insufficient input validation in the Session Initiation Protocol implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service.

High March 2022 24.0 - 27.2 27.3
CVE-2022-27930

Insufficient input validation in the Single Sign On implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service.

High March 2022 27.0 - 27.2 27.3
CVE-2022-27929

Insufficient input validation in the Hypertext Transfer Protocol implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service.

High March 2022 27.0 - 27.2 27.3
CVE-2022-27928 Insufficient input validation in the Session Initiation Protocol implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service. High March 2022 27.0 - 27.2 27.3
CVE-2022-26657 Insufficient input validation in the One Touch Join service allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service. High March 2022 24.0 - 27.2 27.3
CVE-2022-26656

Insufficient input validation in the One Touch Join service allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service. In certain circumstances, the attacker is also able to enumerate OTJ endpoint usernames.

High March 2022 24.0 - 27.2 27.3
CVE-2022-26655 Missing logic in the Infinity Client API implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service. High March 2022 27.0 - 27.2 27.3
CVE-2022-26654

Missing logic in the Hypertext Transfer Protocol implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service.

High

March 2022 24.0 - 27.2 27.3
CVE-2022-22720

Apache HTTP Server 2.4.52 and earlier fails to close inbound connection when errors are encountered discarding the request body, exposing the server to HTTP Request Smuggling.

Critical March 2022 1 - 27.2 27.3
CVE-2022-0778 OpenSSL 1.0.2zc and earlier can be forced into an infinite loop by crafting a certificate containing invalid elliptic curve parameters, allowing an attacker to trigger a denial of service. High March 2022 1 - 27.2 27.3
Multiple Resolved minor issues: CVE-2022-22719, CVE-2022-22721, CVE-2022-23943   March 2022   27.3
CVE-2022-25357 Insufficient authorization checks in the call join implementation under certain circumstances allows a window where an unauthenticated remote attacker could join a locked but not PIN-protected conference. High February 2022 27.0, 27.1 27.2
CVE-2021-20322 A weakness when handling ICMP errors in the Linux kernel could allow a remote attacker to defeat UDP source port randomization. High January 2022 1 - 26.2 27.0
CVE-2021-33909 The Linux kernel filesystem implementation contained a flaw which could allow an unprivileged local user to cause a denial of service or escalate privileges. High January 2022 13.0 - 26.2 27.0
CVE-2021-41073 The io_uring implementation in the Linux kernel contained a flaw which could allow an unprivileged local user to escalate privileges. High January 2022 26.x 27.0
CVE-2021-3712 Parts of the OpenSSL toolkit assumed that ASN.1 string data was stored with a NUL terminator. An attacker able to cause an application to call a vulnerable function with non-terminated data could cause a denial of service, or possible information disclosure. High January 2022 1 - 26.2 27.0
Multiple Resolved minor issues: CVE-2020-21913, CVE-2020-26541, CVE-2021-0920, CVE-2021-0941, CVE-2021-20321, CVE-2021-22918, CVE-2021-25219, CVE-2021-28153, CVE-2021-33098, CVE-2021-33624, CVE-2021-33910, CVE-2021-34556, CVE-2021-35477, CVE-2021-3655, CVE-2021-3679, CVE-2021-37750, CVE-2021-38198, CVE-2021-38209, CVE-2021-39656, CVE-2021-39657, CVE-2021-4002   January 2022   27.0
CVE-2022-23228 Insufficient input validation in the WebRTC implementation allows an unauthenticated remote attacker to cause excessive resource usage leading to a temporary loss of service. High January 2022 1 - 26.x 27.0

CVE-2021-0707: In dma_buf_release of dma-buf.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-155756045References: Upstream kernel

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 29

CVSS 3.1 base score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Mitigation: Exploitation requires an attacker to be able to run arbitrary code on the system by either achieving remote code execution via some other vulnerability or having administrative access to the operating system.

Resolution: Upgrade to Pexip Infinity 29

CVE-2021-39698: In aio_poll_complete_work of aio.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-185125206References: Upstream kernel

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 29

CVSS 3.1 base score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Mitigation: Exploitation requires an attacker to be able to run arbitrary code on the system by either achieving remote code execution via some other vulnerability or having administrative access to the operating system.

Resolution: Upgrade to Pexip Infinity 29

CVE-2022-1011: A use-after-free flaw was found in the Linux kernel’s FUSE filesystem in the way a user triggers write(). This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation.

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 29

CVSS 3.1 base score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Mitigation: Exploitation requires an attacker to be able to run arbitrary code on the system by either achieving remote code execution via some other vulnerability or having administrative access to the operating system.

Resolution: Upgrade to Pexip Infinity 29

CVE-2022-1729: A use-after-free flaw was found in the Linux kernel's performance events subsystem allowing a local user to crash the system.

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 13-28.x

CVSS 3.1 base score: 7.4 (AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

Mitigation: Exploitation requires an attacker to be able to run arbitrary code on the system by either achieving remote code execution via some other vulnerability or having administrative access to the operating system.

Resolution: Upgrade to Pexip Infinity 29

CVE-2022-1786: A use-after-free flaw was found in the Linux kernel’s io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw allows a local user to crash or escalate their privileges on the system.

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 26-28.x

CVSS 3.1 base score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Mitigation: Exploitation requires an attacker to be able to run arbitrary code on the system by either achieving remote code execution via some other vulnerability or having administrative access to the operating system.

Resolution: Upgrade to Pexip Infinity 29

CVE-2022-27666: A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c. This flaw allows a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation threat.

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 21-28.x

CVSS 3.1 base score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Mitigation: Exploitation requires an attacker to be able to run arbitrary code on the system by either achieving remote code execution via some other vulnerability or having administrative access to the operating system.

Resolution: Upgrade to Pexip Infinity 29

CVE-2022-29581: Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14 and later versions.

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 21-28.x

CVSS 3.1 base score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Mitigation: Exploitation requires an attacker to be able to run arbitrary code on the system by either achieving remote code execution via some other vulnerability or having administrative access to the operating system.

Resolution: Upgrade to Pexip Infinity 29

CVE-2022-29582: In the Linux kernel before 5.17.3, fs/io_uring.c has a use-after-free due to a race condition in io_uring timeouts. This can be triggered by a local user who has no access to any user namespace; however, the race condition perhaps can only be exploited infrequently.

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 26-28.x

CVSS 3.1 base score: 7.0 (AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)

Mitigation: Exploitation requires an attacker to be able to run arbitrary code on the system by either achieving remote code execution via some other vulnerability or having administrative access to the operating system.

Resolution: Upgrade to Pexip Infinity 29

CVE-2022-30594: The Linux kernel before 5.17.2 mishandles seccomp permissions. The PTRACE_SEIZE code path allows attackers to bypass intended restrictions on setting the PT_SUSPEND_SECCOMP flag.

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 13-28.x

CVSS 3.1 base score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Mitigation: Exploitation requires an attacker to be able to run arbitrary code on the system by either achieving remote code execution via some other vulnerability or having administrative access to the operating system.

Resolution: Upgrade to Pexip Infinity 29

CVE-2018-25032: zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches.

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 29

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: This issue is most reliably triggered by use of static Huffman coding (Z_FIXED), which is not used by Pexip Infinity, but can also occur when using dynamic Huffman coding (Z_DEFAULT_STRATEGY) with a memLevel of 1. All use of zlib compression within Pexip Infinity uses dynamic Huffman coding (Z_DEFAULT_STRATEGY) with a memLevel of at least 8.

Resolution: Upgrade to Pexip Infinity 29

CVE-2022-36434: Insufficient input validation in the Pexip Client API implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service.

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 28.x

CVSS3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: Disable support for Pexip Infinity Connect clients and Client API in Pexip Infinity Global Settings.

Resolution: Upgrade to Pexip Infinity 29

CVE-2022-34490: Insufficient input validation in the RTP implementation allows a malicious attacker to trigger a software abort resulting in a denial of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 9.0 - 28.1

CVSS3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 29

CVE-2022-32956: Improper access control in the Infinity Management API allows a malicious attacker to escalate privileges when certificate based authentication is enabled

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 5.5 - 28.1

CVSS 3.1 base score: 8.6 (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N)

Mitigation: Disable certificate based authentication.

Resolution: Upgrade to Pexip Infinity 29

CVE-2022-32263: Insufficient input validation in the G.719 codec implementation allows a malicious attacker to trigger a software abort resulting in a denial of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 13.0 - 28.0

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: Disable the G.719 codec implementation in the Codecs section of Platform > Global Settings).

Resolution: Upgrade to Pexip Infinity 28.1

CVE-2022-29286: Resource mismanagement in the registrar allows an unauthenticated remote attacker to cause the system to consume excess resources and eventually terminate, resulting in a denial of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 27.0, 27.1, 27.2, 27.3

CVSS 3.1 base score: 8.6 (AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)

Mitigation: Where possible, disable the registrar (Services > Registrar).

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-27936: Insufficient input validation in the H.323 protocol implementation allows an unauthenticated remote attacker to trigger a software abort resulting in a denial of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: Where possible, disable the H.323 protocol implementation (Platform > Global Settings > Connectivity).

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-25315: In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames

Impact to Pexip Infinity: Critical

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-25314: In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-25236: xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs

Impact to Pexip Infinity: Critical

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-25235: xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context

Impact to Pexip Infinity: Critical

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-23990: Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function

Impact to Pexip Infinity: Critical

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-23852: Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES

Impact to Pexip Infinity: Critical

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-23308: valid.c in libxml2 before 2.9.13 has a use-after-free of ID and IDREF attributes

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-22827: storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-22826: nextScaffoldPart in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-22825: lookup in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-22824: defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow

Impact to Pexip Infinity: Critical

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-22823: build_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow

Impact to Pexip Infinity: Critical

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-22822: addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow

Impact to Pexip Infinity: Critical

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-0847: A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Mitigation: Exploitation requires an attacker to be able to run arbitrary code on the system by either achieving remote code execution via some other vulnerability or having administrative access to the operating system.

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-0492: A vulnerability was found in the Linux kernel’s cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Mitigation: Exploitation requires an attacker to be able to run arbitrary code on the system by either achieving remote code execution via some other vulnerability or having administrative access to the operating system.

Resolution: Upgrade to Pexip Infinity 28

CVE-2021-46143: In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 7.8 (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2021-45960: In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2021-45485: In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2021-22600: A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Mitigation: Exploitation requires an attacker to be able to run arbitrary code on the system by either achieving remote code execution via some other vulnerability or having administrative access to the operating system.

Resolution: Upgrade to Pexip Infinity 28

CVE-2021-4154: A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 8.8 (AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)

Mitigation: Exploitation requires an attacker to be able to run arbitrary code on the system by either achieving remote code execution via some other vulnerability or having administrative access to the operating system.

Resolution: Upgrade to Pexip Infinity 28

CVE-2021-4083: A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 7.0 (AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)

Mitigation: Exploitation requires an attacker to be able to run arbitrary code on the system by either achieving remote code execution via some other vulnerability or having administrative access to the operating system.

Resolution: Upgrade to Pexip Infinity 28

CVE-2018-25032: zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 28

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 28

CVE-2022-27937: Insufficient input validation in the H.264 codec implementation allows an unauthenticated remote attacker to trigger excess resource consumption leading to a software abort and denial of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 27.3

CVSS 3.1 base score: 8.6 (AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)

Mitigation: Where practical, disable all H.264 codec variants in the Codecs section of Platform > Global Settings.

Resolution: Upgrade to Pexip Infinity 27.3

CVE-2022-27935: Insufficient input validation in the Epic Telehealth implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 25-27.2

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 27.3

CVE-2022-27934: Insufficient input validation in the Hypertext Transfer Protocol implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 25-27.2

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 27.3

CVE-2022-27933: Insufficient input validation in the One Touch Join service allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service. In certain circumstances, the attacker is also able to enumerate OTJ endpoint usernames

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 24-27.2

CVSS 3.1 base score: 8.2 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H)

Mitigation: This vulnerability requires the configuration of a "Poly OTD" OTJ Endpoint, an associated OTJ Endpoint Group, the assignment of the OTJ Endpoint Group to a System Location, and associated OTJ Profile. The attacker needs to be able to submit requests to a Conferencing Node in the relevant System Location. Ensure that System Locations associated with OTJ Profiles containing Poly Endpoints are restricted to trusted network segments only.

Resolution: Upgrade to Pexip Infinity 27.3

CVE-2022-27932: Insufficient input validation in the One Touch Join service allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 24-27.2

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: This vulnerability requires the configuration of a "Poly OTD" OTJ Endpoint, an associated OTJ Endpoint Group, the assignment of the OTJ Endpoint Group to a System Location, and associated OTJ Profile. The attacker needs to be able to submit requests to a Conferencing Node in the relevant System Location. Ensure that System Locations associated with OTJ Profiles containing Poly Endpoints are restricted to trusted network segments only.

Resolution: Upgrade to Pexip Infinity 27.3

CVE-2022-27931: Insufficient input validation in the Session Initiation Protocol implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 24-27.2

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: Where practical, disable the SIP implementation in the Connectivity section of Platform > Global Settings.

Resolution: Upgrade to Pexip Infinity 27.3

CVE-2022-27930: Insufficient input validation in the single-sign-on implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 27-27.2

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: The unique identifier for an Identity Provider is required to be able to exploit this vulnerability. Identifiers are a randomly generated Universally Unique Identifier and thus unlikely to be guessed correctly.

Resolution: Upgrade to Pexip Infinity 27.3

CVE-2022-27929: Insufficient input validation in the Hypertext Transfer Protocol implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 27-27.2

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 27.3

CVE-2022-27928: Insufficient input validation in the Session Initiation Protocol implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 27-27.2

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: Where practical, disable the SIP implementation in the Connectivity section of Platform > Global Settings.

Resolution: Upgrade to Pexip Infinity 27.3

CVE-2022-26657: Insufficient input validation in the One Touch Join service allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 24-27.2

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: This vulnerability requires the configuration of a "Poly OTD" OTJ Endpoint, an associated OTJ Endpoint Group, the assignment of the OTJ Endpoint Group to a System Location, and associated OTJ Profile. The attacker needs to be able to submit requests to a Conferencing Node in the relevant System Location. Ensure that System Locations associated with OTJ Profiles containing Poly Endpoints are restricted to trusted network segments only.

Resolution: Upgrade to Pexip Infinity 27.3

CVE-2022-26656: Insufficient input validation in the One Touch Join service allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service. In certain circumstances, the attacker is also able to enumerate OTJ endpoint usernames

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 24-27.2

CVSS 3.1 base score: 8.2 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H)

Mitigation: This vulnerability requires the configuration of a "Poly OTD" OTJ Endpoint, an associated OTJ Endpoint Group, the assignment of the OTJ Endpoint Group to a System Location, and associated OTJ Profile. The attacker needs to be able to submit requests to a Conferencing Node in the relevant System Location. Ensure that System Locations associated with OTJ Profiles containing Poly Endpoints are restricted to trusted network segments only.

Resolution: Upgrade to Pexip Infinity 27.3

CVE-2022-26655: Missing logic in the Infinity Client API implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 27-27.2

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: This vulnerability only affects gateway calls from API clients (e.g. WebRTC) into Microsoft Teams. Disabling the Client API in the Connectivity section of Platform > Global Settings is one way to mitigate this issue. Alternatively, ensure access to call routing rules targetting Microsoft Teams are restricted to trusted devices or locations.

Resolution: Upgrade to Pexip Infinity 27.3

CVE-2022-26654: Missing logic in the Hypertext Transfer Protocol implementation allows an unauthenticated remote attacker to trigger a software abort leading to a denial of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 24-27.2

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 27.3

CVE-2022-22720: Apache HTTP Server 2.4.52 and earlier fails to close inbound connection when errors are encountered discarding the request body, exposing the server to HTTP Request Smuggling

Impact to Pexip Infinity: Critical

Affected versions of Pexip Infinity: All before 27.3

CVSS 3.1 base score: 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 27.3

CVE-2022-0778: OpenSSL 1.0.2zc and earlier can be forced into an infinite loop by crafting a certificate containing invalid elliptic curve parameters, allowing an attacker to trigger a denial of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 27.3

CVSS 3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 27.3

CVE-2022-25357: Insufficient authorization checks in the call join implementation under certain circumstances allows a window where an unauthenticated remote attacker could join a locked but not PIN-protected conference

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 27.0, 27.1

CVSS3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

Mitigation: Ensure all conferences are PIN protected.

Resolution: Upgrade to Pexip Infinity 27.2

CVE-2021-20322: A weakness when handling ICMP errors in the Linux kernel could allow a remote attacker to defeat UDP source port randomization

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 27

CVSS 3.1 base score: 7.4 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 27.0

CVE-2021-33909: The Linux kernel filesystem implementation contained a flaw which could allow an unprivileged local user to cause a denial of service or escalate privileges

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 13 - 26.2

CVSS 3.1 base score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Mitigation: Exploitation of this vulnerability requires an unprivileged attacker to be able to run arbitrary code on the system, which is not the case in normal operation.

Resolution: Upgrade to Pexip Infinity 27.0

CVE-2021-41073: The io_uring implementation in the Linux kernel contained a flaw which could allow an unprivileged local user to escalate privileges

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 26.x

CVSS 3.1 base score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Mitigation: Exploitation of this vulnerability requires an unprivileged attacker to be able to run arbitrary code on the system, which is not the case in normal operation.

Resolution: Upgrade to Pexip Infinity 27.0

CVE-2021-3712: Parts of the OpenSSL toolkit assumed that ASN.1 string data was stored with a NUL terminator. An attacker able to cause an application to call a vulnerable function with non-terminated data could cause a denial of service, or possible information disclosure

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: All before 27

CVSS 3.1 base score: 7.4 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity 27.0

CVE-2022-23228: Insufficient input validation in the WebRTC implementation allows an unauthenticated remote attacker to cause excessive resource usage leading to a temporary loss of service

Impact to Pexip Infinity: High

Affected versions of Pexip Infinity: 1.0 to 26.2

CVSS3.1 base score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Mitigation: Disable WebRTC via Platform > Global Settings > Connectivity.

Resolution: Upgrade to Pexip Infinity 27.0

Infinity Connect

Each bulletin addresses a number of vulnerabilities in the software used by Infinity Connect. The bulletins include an assessment of the issues, the impact to Infinity Connect, and resolution details.

Bulletin Description Risk Updated Addressed in version
CVE-2021-29655 Missing authenticity checks in application provisioning allow an attacker to cause the application to run untrusted code. High June 2021 1.8.0
CVE-2021-29656 Missing checks in certificate allow list matching allow a remote attacker to compromise a TLS connection, extracting data and potentially causing remote code execution. High June 2021 1.8.0

CVE-2021-29655: Missing authenticity checks in application provisioning allow an attacker to cause the application to run untrusted code.

Impact to Infinity Connect: High

Affected versions of Infinity Connect: All before 1.8.0

CVSS3.1 base score: 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Infinity Connect 1.8.0

Credit: This issue was responsibly disclosed by The UK's National Cyber Security Centre (NCSC)

CVE-2021-29656: Missing checks in certificate allow list matching allow a remote attacker to compromise a TLS connection, extracting data and potentially causing remote code execution.

Impact to Infinity Connect: High

Affected versions of Infinity Connect: All before 1.8.0

CVSS3.1 base score: 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Mitigation: None

Resolution: Upgrade to Pexip Infinity Connect 1.8.0

Credit: This issue was responsibly disclosed by The UK's National Cyber Security Centre (NCSC)