Headline
RHSA-2023:1467: Red Hat Security Advisory: kernel-rt security and bug fix update
An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 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-2022-4744: A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This flaw allows a local user to crash or potentially escalate their privileges on the system.
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Issued:
2023-03-27
Updated:
2023-03-27
RHSA-2023:1467 - Security Advisory
- Overview
- Updated Packages
Synopsis
Important: kernel-rt security and bug fix 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 kernel-rt is now available for Red Hat Enterprise Linux 9.0 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.
Description
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
- kernel: tun: avoid double free in tun_free_netdev (CVE-2022-4744)
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.
Bug Fix(es):
- kernel-rt: update RT source tree to the latest RHEL-9.0.z8 Batch (BZ#2174392)
Solution
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
Affected Products
- Red Hat Enterprise Linux for Real Time for x86_64 - 4 years of updates 9.0 x86_64
- Red Hat Enterprise Linux for Real Time for NFV for x86_64 - 4 years of updates 9.0 x86_64
Fixes
- BZ - 2156322 - CVE-2022-4744 kernel: tun: avoid double free in tun_free_netdev
Red Hat Enterprise Linux for Real Time for x86_64 - 4 years of updates 9.0
SRPM
kernel-rt-5.14.0-70.50.2.rt21.122.el9_0.src.rpm
SHA-256: e22d697e53028e097d3647de9124589dc35ed25b77f2b36336ec45cfecc88378
x86_64
kernel-rt-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 844fdc63fd251205615004982806ef1cd729aece25c9b2639f2dbb7db46ca4d4
kernel-rt-core-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: a0136896e8a0b0f66dbd38083aefaf99571ee6a1cf4aba35bdb2679a50519f6c
kernel-rt-debug-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 1c7b3dab2c0201b8599f781e40ea318f7ee58499961dae09bbdc811cb3657d49
kernel-rt-debug-core-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 294fcd533b8baf6845fd25961f5bf82f64a0c496a58beefdeb0858e8dc2bf4b7
kernel-rt-debug-debuginfo-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: e85a105e5aeb438e285f8f578ef07a3d9d516570132859754531c4723d657072
kernel-rt-debug-devel-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 0f24d912d6870d27332fa7b60d8852fa15b2a6db722f30503782ef24b920c323
kernel-rt-debug-modules-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 73850864da35cc5c43a1956e2cac8c10316ff58e0b8694e3e55dc05bcbc8240c
kernel-rt-debug-modules-extra-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 0f2d4b06238346c0a576f0f83cd69d31c37b129cd2e0950b095a8267032c4fcb
kernel-rt-debuginfo-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: fe23aac1d896de2a86719480e62e194bbd2f9103fd4c313b71b155549dceff8d
kernel-rt-debuginfo-common-x86_64-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: dbd245685bc0a178c6294a87009cdbabc90ee87b61a24a0cbbded73a73faf667
kernel-rt-devel-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: a2e5e41c8515b290ad55db53d13403397318a8a9ec3980ed5f84b487c80d2219
kernel-rt-modules-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 66aba44c2bda9d421daec62a553477412348b401530dbb77931398f3868d4322
kernel-rt-modules-extra-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 0ce32c6af8230db2da513fafae7a775274172ec8f62bec6689d60cf30b42b3a3
Red Hat Enterprise Linux for Real Time for NFV for x86_64 - 4 years of updates 9.0
SRPM
kernel-rt-5.14.0-70.50.2.rt21.122.el9_0.src.rpm
SHA-256: e22d697e53028e097d3647de9124589dc35ed25b77f2b36336ec45cfecc88378
x86_64
kernel-rt-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 844fdc63fd251205615004982806ef1cd729aece25c9b2639f2dbb7db46ca4d4
kernel-rt-core-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: a0136896e8a0b0f66dbd38083aefaf99571ee6a1cf4aba35bdb2679a50519f6c
kernel-rt-debug-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 1c7b3dab2c0201b8599f781e40ea318f7ee58499961dae09bbdc811cb3657d49
kernel-rt-debug-core-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 294fcd533b8baf6845fd25961f5bf82f64a0c496a58beefdeb0858e8dc2bf4b7
kernel-rt-debug-debuginfo-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: e85a105e5aeb438e285f8f578ef07a3d9d516570132859754531c4723d657072
kernel-rt-debug-devel-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 0f24d912d6870d27332fa7b60d8852fa15b2a6db722f30503782ef24b920c323
kernel-rt-debug-kvm-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 07da0bd13107afe2a6fc1deb1f5c8338a627fb0ebc33908ab339c35d7cbf843a
kernel-rt-debug-modules-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 73850864da35cc5c43a1956e2cac8c10316ff58e0b8694e3e55dc05bcbc8240c
kernel-rt-debug-modules-extra-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 0f2d4b06238346c0a576f0f83cd69d31c37b129cd2e0950b095a8267032c4fcb
kernel-rt-debuginfo-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: fe23aac1d896de2a86719480e62e194bbd2f9103fd4c313b71b155549dceff8d
kernel-rt-debuginfo-common-x86_64-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: dbd245685bc0a178c6294a87009cdbabc90ee87b61a24a0cbbded73a73faf667
kernel-rt-devel-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: a2e5e41c8515b290ad55db53d13403397318a8a9ec3980ed5f84b487c80d2219
kernel-rt-kvm-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: a7aabf282daa471a96b4e9fa94cc5507e75040cef0e8902e6f502125572fd69c
kernel-rt-modules-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 66aba44c2bda9d421daec62a553477412348b401530dbb77931398f3868d4322
kernel-rt-modules-extra-5.14.0-70.50.2.rt21.122.el9_0.x86_64.rpm
SHA-256: 0ce32c6af8230db2da513fafae7a775274172ec8f62bec6689d60cf30b42b3a3
The Red Hat security contact is [email protected]. More contact details at https://access.redhat.com/security/team/contact/.
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An update for kernel is now available for Red Hat Enterprise Linux 9.0 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-2022-4744: A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This flaw allows a local user to crash or potentially escalate their privileges on the system.
An update for kernel 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-2022-4269: A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action "mirred") a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of se...
An update for kpatch-patch is now available for Red Hat Enterprise Linux 9.0 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-2022-4744: A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This flaw allows a local user to crash or potentially escalate their privileges on the system.
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-2022-4744: A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This flaw allows a local user to crash or potentially escalate their privileges on the system. * CVE-2023-0266: A use-after-free flaw was found in the...