Headline
RHSA-2022:5214: Red Hat Security Advisory: kpatch-patch security update
An update for kpatch-patch is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
Related CVEs:
- CVE-2022-1012: kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak
- CVE-2022-1966: kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root
- CVE-2022-27666: kernel: buffer overflow in IPsec ESP transformation code
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Issued:
2022-06-28
Updated:
2022-06-28
RHSA-2022:5214 - Security Advisory
- Overview
- Updated Packages
Synopsis
Important: kpatch-patch security update
Type/Severity
Security Advisory: Important
Red Hat Insights patch analysis
Identify and remediate systems affected by this advisory.
View affected systems
Topic
An update for kpatch-patch is now available for Red Hat Enterprise Linux 9.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.
Security Fix(es):
- kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak (CVE-2022-1012)
- kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root (CVE-2022-1966)
- kernel: buffer overflow in IPsec ESP transformation code (CVE-2022-27666)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected Products
- Red Hat Enterprise Linux for x86_64 9 x86_64
- Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.0 x86_64
- Red Hat Enterprise Linux for Power, little endian 9 ppc64le
- Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.0 ppc64le
- Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.0 ppc64le
- Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.0 x86_64
Fixes
- BZ - 2061633 - CVE-2022-27666 kernel: buffer overflow in IPsec ESP transformation code
- BZ - 2064604 - CVE-2022-1012 kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak
- BZ - 2092427 - CVE-2022-1966 kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root
Red Hat Enterprise Linux for x86_64 9
SRPM
kpatch-patch-5_14_0-70_13_1-1-1.el9_0.src.rpm
SHA-256: a919ee8ab97a8143ec24f3264e6354e20a7558574705c3313f63e9f36f9bf70a
x86_64
kpatch-patch-5_14_0-70_13_1-1-1.el9_0.x86_64.rpm
SHA-256: 6893e57f3dd7c8df77166f2fb7dffc12982d7b19f0f6467adef3c45f4f4a59b1
kpatch-patch-5_14_0-70_13_1-debuginfo-1-1.el9_0.x86_64.rpm
SHA-256: 1a6b2cb629035e323fc119a5fdb76f8dc7f79f448458717e9621df895eb3e184
kpatch-patch-5_14_0-70_13_1-debugsource-1-1.el9_0.x86_64.rpm
SHA-256: cacfdbbb5192654fcdbbf19baf2636e2ae0d4f50325d43f956bdee3e42544ef3
Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.0
SRPM
kpatch-patch-5_14_0-70_13_1-1-1.el9_0.src.rpm
SHA-256: a919ee8ab97a8143ec24f3264e6354e20a7558574705c3313f63e9f36f9bf70a
x86_64
kpatch-patch-5_14_0-70_13_1-1-1.el9_0.x86_64.rpm
SHA-256: 6893e57f3dd7c8df77166f2fb7dffc12982d7b19f0f6467adef3c45f4f4a59b1
kpatch-patch-5_14_0-70_13_1-debuginfo-1-1.el9_0.x86_64.rpm
SHA-256: 1a6b2cb629035e323fc119a5fdb76f8dc7f79f448458717e9621df895eb3e184
kpatch-patch-5_14_0-70_13_1-debugsource-1-1.el9_0.x86_64.rpm
SHA-256: cacfdbbb5192654fcdbbf19baf2636e2ae0d4f50325d43f956bdee3e42544ef3
Red Hat Enterprise Linux for Power, little endian 9
SRPM
kpatch-patch-5_14_0-70_13_1-1-1.el9_0.src.rpm
SHA-256: a919ee8ab97a8143ec24f3264e6354e20a7558574705c3313f63e9f36f9bf70a
ppc64le
kpatch-patch-5_14_0-70_13_1-1-1.el9_0.ppc64le.rpm
SHA-256: d90da7d2bddbeab627b9a518134a8f6974d2615d8ab18063206f13a31c2f5449
kpatch-patch-5_14_0-70_13_1-debuginfo-1-1.el9_0.ppc64le.rpm
SHA-256: a92183df74f0304fffdf2fd8431e0769f78644e78969f8b957ad33852a5b214a
kpatch-patch-5_14_0-70_13_1-debugsource-1-1.el9_0.ppc64le.rpm
SHA-256: a094e8218d182d66ef03833c165a829b4b28542c6f6921285dd155b94f1d5450
Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.0
SRPM
kpatch-patch-5_14_0-70_13_1-1-1.el9_0.src.rpm
SHA-256: a919ee8ab97a8143ec24f3264e6354e20a7558574705c3313f63e9f36f9bf70a
ppc64le
kpatch-patch-5_14_0-70_13_1-1-1.el9_0.ppc64le.rpm
SHA-256: d90da7d2bddbeab627b9a518134a8f6974d2615d8ab18063206f13a31c2f5449
kpatch-patch-5_14_0-70_13_1-debuginfo-1-1.el9_0.ppc64le.rpm
SHA-256: a92183df74f0304fffdf2fd8431e0769f78644e78969f8b957ad33852a5b214a
kpatch-patch-5_14_0-70_13_1-debugsource-1-1.el9_0.ppc64le.rpm
SHA-256: a094e8218d182d66ef03833c165a829b4b28542c6f6921285dd155b94f1d5450
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.0
SRPM
kpatch-patch-5_14_0-70_13_1-1-1.el9_0.src.rpm
SHA-256: a919ee8ab97a8143ec24f3264e6354e20a7558574705c3313f63e9f36f9bf70a
ppc64le
kpatch-patch-5_14_0-70_13_1-1-1.el9_0.ppc64le.rpm
SHA-256: d90da7d2bddbeab627b9a518134a8f6974d2615d8ab18063206f13a31c2f5449
kpatch-patch-5_14_0-70_13_1-debuginfo-1-1.el9_0.ppc64le.rpm
SHA-256: a92183df74f0304fffdf2fd8431e0769f78644e78969f8b957ad33852a5b214a
kpatch-patch-5_14_0-70_13_1-debugsource-1-1.el9_0.ppc64le.rpm
SHA-256: a094e8218d182d66ef03833c165a829b4b28542c6f6921285dd155b94f1d5450
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.0
SRPM
kpatch-patch-5_14_0-70_13_1-1-1.el9_0.src.rpm
SHA-256: a919ee8ab97a8143ec24f3264e6354e20a7558574705c3313f63e9f36f9bf70a
x86_64
kpatch-patch-5_14_0-70_13_1-1-1.el9_0.x86_64.rpm
SHA-256: 6893e57f3dd7c8df77166f2fb7dffc12982d7b19f0f6467adef3c45f4f4a59b1
kpatch-patch-5_14_0-70_13_1-debuginfo-1-1.el9_0.x86_64.rpm
SHA-256: 1a6b2cb629035e323fc119a5fdb76f8dc7f79f448458717e9621df895eb3e184
kpatch-patch-5_14_0-70_13_1-debugsource-1-1.el9_0.x86_64.rpm
SHA-256: cacfdbbb5192654fcdbbf19baf2636e2ae0d4f50325d43f956bdee3e42544ef3
The Red Hat security contact is [email protected]. More contact details at https://access.redhat.com/security/team/contact/.
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Red Hat Security Advisory 2022-5224-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include buffer overflow, information leakage, privilege escalation, and use-after-free vulnerabilities.
Red Hat Security Advisory 2022-5267-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include buffer overflow, information leakage, privilege escalation, and use-after-free vulnerabilities.
An update for kernel-rt is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2020-28915: kernel: out-of-bounds read in fbcon_get_font function * CVE-2022-27666: kernel: buffer overflow in IPsec ESP transformation code
An update for kernel is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2020-29368: kernel: the copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check * CVE-2022-1012: kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak * CVE-2022-1729: kernel: race condition in perf_event_open leads to priv...
An update for kernel-rt is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1012: kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak * CVE-2022-1729: kernel: race condition in perf_event_open leads to privilege escalation * CVE-2022-1966: kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root * CVE-2022-27666: kernel: buffer ov...
An update for kernel-rt is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1729: kernel: race condition in perf_event_open leads to privilege escalation * CVE-2022-1966: kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2020-29368: kernel: the copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check * CVE-2022-1012: kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak * CVE-2022-1729: kernel: race condition in perf_event_open leads to p...
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2020-29368: kernel: the copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check * CVE-2022-1012: kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak * CVE-2022-1729: kernel: race condition in perf_event_open leads to p...
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2020-29368: kernel: the copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check * CVE-2022-1012: kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak * CVE-2022-1729: kernel: race condition in perf_event_open leads to p...
Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. Ziming Zhang discovered that the netfilter subsystem in the Linux kernel did not properly validate sets with multiple ranged fields. A local attacker could use this to cause a denial of service or execute arbitrary code.
Red Hat Security Advisory 2022-4942-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include a buffer overflow vulnerability.
Ubuntu Security Notice 5471-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.
Ubuntu Security Notice 5471-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.
Ubuntu Security Notice 5469-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.
Ubuntu Security Notice 5470-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.
Ubuntu Security Notice 5468-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.
Ubuntu Security Notice 5467-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.
Ubuntu Security Notice 5466-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.
Red Hat Security Advisory 2022-4924-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a buffer overflow vulnerability.
An update for kernel is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-27666: kernel: buffer overflow in IPsec ESP transformation code
A use-after-free vulnerability was found in the Linux kernel's Netfilter subsystem in net/netfilter/nf_tables_api.c. This flaw allows a local attacker with user access to cause a privilege escalation issue.
Red Hat Security Advisory 2022-4835-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include a buffer overflow vulnerability.
Red Hat Security Advisory 2022-4829-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a buffer overflow vulnerability.
Red Hat Security Advisory 2022-4809-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include a buffer overflow vulnerability.
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2021-4037: kernel: security regression for CVE-2018-13405 * CVE-2021-20322: kernel: new DNS Cache Poisoning Attack based on ICMP fragment needed packets replies * CVE-2022-27666: kernel: buffer overflow in IPsec ESP transformation code
An update for kernel is now available for Red Hat Enterprise Linux 8.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2021-4037: kernel: security regression for CVE-2018-13405 * CVE-2021-20322: kernel: new DNS Cache Poisoning Attack based on ICMP fragment needed packets replies * CVE-2022-27666: kernel: buffer overflow in IPsec ESP transformation code
An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-27666: kernel: buffer overflow in IPsec ESP transformation code
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.