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Red Hat Enterprise Linux 8.6 RHSA-2023-3388-01 Important Kernel Security

red hat
Calendar Grey May 31, 2023
Dist Redhat Esm H88
Ubuntu Server 22.04 kernel upgrade tackles significant vulnerabilities and performance enhancements affecting user environments.
An update for kernel is now available for Red Hat Enterprise Linux 8.6 Extended Update Support

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: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c (CVE-2022-3564)
* kernel: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378)
* kernel: unmap_mapping_range() race with munmap() on VM_PFNMAP mappings leads to stale TLB entry (CVE-2022-39188)
* kernel: use-after-free related to leaf anon_vma double reuse (CVE-2022-42703)
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):
* An application stopped on robust futex used via pthread_mutex_lock() (BZ#2170055)
* dm crypt: backport flags to optionally bypass kcryptd workqueues (BZ#2175202)
* The qede driver changes rx-usecs: to 256 causing performance impact (BZ#2176106)
* Intel QAT Update - (kernel changes) (BZ#2176852)
* Concurrent NVMe scans cause panic with native multipath (BZ#2178244)
* CNB: Update TC subsystem to upstream v5.18 (BZ#2179432)
* Server crashed in cifs_reconnect -> dfs_cache_free_tgts (BZ#2182082)
* WARNING: possible circular locking dependency detected cpu_partial_store+0x44/0x80 (BZ#2184771)
* "smpboot: Scheduler frequency invariance went wobbly, disabling!" on nohz_full CPUs after long run (BZ#2188069)
* kernel-rt: task deadline_test:2526 blocked for more than 600 seconds. (BZ#2188625)
* gfs2: file corruption in large data files (BZ#2188687)
Enhancement(s):
* Add support for no HWP mode into intel_pstate for Sapphire Rapids (SPR) (BZ#2178644)

Topics%20covered

Topics Covered

security advisory security issue DoS Red Hat Enterprise Linux important kernel fix enhancement

References

https://access.redhat.com/security/cve/CVE-2022-3564 https://access.redhat.com/security/cve/CVE-2022-4378 https://access.redhat.com/security/cve/CVE-2022-39188 https://access.redhat.com/security/cve/CVE-2022-42703 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS EUS (v.8.6):
Source: kernel-4.18.0-372.57.1.el8_6.src.rpm
aarch64: bpftool-4.18.0-372.57.1.el8_6.aarch64.rpm bpftool-debuginfo-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-core-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-cross-headers-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-debug-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-debug-core-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-debug-debuginfo-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-debug-devel-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-debug-modules-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-debug-modules-extra-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-debuginfo-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-devel-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-headers-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-modules-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-modules-extra-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-tools-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-tools-debuginfo-4.18.0-372.57.1.el8_6.aarch64.rpm kernel-tools-libs-4.18.0-372.57.1.el8_6.aarch64.rpm perf-4.18.0-372.57.1.el8_6.aarch64.rpm perf-debuginfo-4.18.0-372.57.1.el8_6.aarch64.rpm python3-perf-4.18.0-372.57.1.el8_6.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:3388-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:3388
Issue date: 2023-05-31

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.6Extended Update Support.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 security issue DoS Red Hat Enterprise Linux important kernel fix enhancement

Relevant Releases Architectures

Red Hat CodeReady Linux Builder EUS (v.8.6) - aarch64, ppc64le, x86_64

Red Hat Enterprise Linux BaseOS EUS (v.8.6) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

2130141 - CVE-2022-39188 kernel: unmap_mapping_range() race with munmap() on VM_PFNMAP mappings leads to stale TLB entry

2133483 - CVE-2022-42703 kernel: use-after-free related to leaf anon_vma double reuse

2150999 - CVE-2022-3564 kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c

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

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