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Red Hat Enterprise Linux: RHSA-2023-1566-01 Important Kernel Threat

red hat
Calendar Grey April 4, 2023
Dist Redhat Esm H88
Critical notice regarding Red Hat kernel revision highlighting significant updates and improvements. Serious security vulnerabilities identified and addressed.
An update for kernel is now available for Red Hat Enterprise Linux 8

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.

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378)
* ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF (CVE-2023-0266)
* kernel: FUSE filesystem low-privileged user privileges escalation (CVE-2023-0386)
* kernel: net: CPU soft lockup in TC mirred egress-to-ingress action (CVE-2022-4269)
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 panic on reboot due to a bug in mei_wdt module (BZ#2139770)
* RHEL8: Practically limit "Dummy wait" workaround to old Intel systems (BZ#2142170)
* AMDSERVER 8.7: amdpstate driver incorrectly designed to load as default for Genoa (BZ#2151275)
* RHEL-8.8: Update RDMA core to Linux v6.0 (BZ#2161750)
* Kernel panic observed during VxFS module unload (BZ#2162763)
* Client not able to connect to rhel server: SYN is answered by chalange ACK and RST is ignored (BZ#2165587)
* RHEL8.4: s390/kexec: fix ipl report address for kdump (BZ#2166296)
* kvm-unit-test reports unhandled exception on AMD (BZ#2166362)
* Windows Server 2019 guest randomly pauses with "KVM: entry failed, hardware error 0x80000021" (BZ#2166368)
* Unable to get QinQ working with ConnectX-4 Lx in SR-IOV scenario (BZ#2166665)
* panic in fib6_rule_suppress+0x22 with custom xdp prog involved in (BZ#2167602)
* net/mlx5e: Fix use-after-free when reverting termination table (BZ#2167640)
* RHEL 8.7: EEH injection failed to recover on Mellanox adapter. (BZ#2167645)
* mlx5: lag and sriov fixes (BZ#2167647)
* RHEL8.4: dasd: fix no record found for raw_track_access (BZ#2167776)
* GSS: Set of fixes in ceph kernel module to prevent OCS node kernel crash - - blocklist the kclient when receiving corrupted snap trace (BZ#2168896)
* Azure RHEL8 scsi: storvsc: Fix swiotlb bounce buffer leak in confidential VM (BZ#2170228)
* fast_isolate_freepages scans out of target zone (BZ#2170576)
* Backport Request for locking/rwsem commits (BZ#2170939)
* ipv6 traffic stop when an sriov vf have ipv6 address (BZ#2172550)
* Hyper-V RHEL8.8: Update MANA driver (BZ#2173103)
Enhancement(s):
* Intel 8.8 FEAT SPR CPU: AMX: Improve the init_fpstate setup code (BZ#2168384)

Topics%20covered

Topics Covered

security advisory kernel update bug fix Red Hat Enterprise Linux threat important security impact

References

https://access.redhat.com/security/cve/CVE-2022-4269 https://access.redhat.com/security/cve/CVE-2022-4378 https://access.redhat.com/security/cve/CVE-2023-0266 https://access.redhat.com/security/cve/CVE-2023-0386 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: kernel-4.18.0-425.19.2.el8_7.src.rpm
aarch64: bpftool-4.18.0-425.19.2.el8_7.aarch64.rpm bpftool-debuginfo-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-core-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-cross-headers-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-debug-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-debug-core-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-debug-debuginfo-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-debug-devel-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-debug-modules-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-debug-modules-extra-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-debuginfo-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-devel-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-headers-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-modules-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-modules-extra-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-tools-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-tools-debuginfo-4.18.0-425.19.2.el8_7.aarch64.rpm kernel-tools-libs-4.18.0-425.19.2.el8_7.aarch64.rpm perf-4.18.0-425.19.2.el8_7.aarch64.rpm perf-debuginfo-4.18.0-425.19.2.el8_7.aarch64.rpm python3-perf-4.18.0-425.19.2.el8_7.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:1566-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:1566
Issue date: 2023-04-04

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory kernel update bug fix Red Hat Enterprise Linux threat important security impact

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 8) - aarch64, ppc64le, x86_64

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

2150272 - CVE-2022-4269 kernel: net: CPU soft lockup in TC mirred egress-to-ingress action

2152548 - CVE-2022-4378 kernel: stack overflow in do_proc_dointvec and proc_skip_spaces

2159505 - CVE-2023-0386 kernel: FUSE filesystem low-privileged user privileges escalation

2163379 - CVE-2023-0266 ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF

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