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Red Hat Enterprise Linux 7: RHSA-2023-4819-01 Important Kernel Update

red hat
Calendar Grey August 29, 2023
Dist Redhat Esm H88
SUSE reveals essential security patch and bug correction for Linux Enterprise Server 15, tackling significant vulnerabilities.
An update for kernel is now available for Red Hat Enterprise Linux 7

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: cls_flower: out-of-bounds write in fl_set_geneve_opt() (CVE-2023-35788)
* hw: amd: Cross-Process Information Leak (CVE-2023-20593)
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):
* nf_conntrack causing nfs to stall (BZ#2128262)
* Request to backport upstream commit 5e2d2cc2588b, 26a8b12747c9, and e98fa02c4f2e for RHEL 7.9.z (BZ#2180681)
* Fix soft lockup happens in gfs2_dir_get_hash_table() (BZ#2190450)

Topics%20covered

Topics Covered

security advisory information leak kernel update bug fix security fix Red Hat Enterprise Linux important

References

https://access.redhat.com/security/cve/CVE-2023-20593 https://access.redhat.com/security/cve/CVE-2023-35788 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: kernel-3.10.0-1160.99.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-1160.99.1.el7.noarch.rpm kernel-doc-3.10.0-1160.99.1.el7.noarch.rpm
x86_64: bpftool-3.10.0-1160.99.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1160.99.1.el7.x86_64.rpm kernel-3.10.0-1160.99.1.el7.x86_64.rpm kernel-debug-3.10.0-1160.99.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.99.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1160.99.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.99.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.99.1.el7.x86_64.rpm kernel-devel-3.10.0-1160.99.1.el7.x86_64.rpm kernel-headers-3.10.0-1160.99.1.el7.x86_64.rpm kernel-tools-3.10.0-1160.99.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.99.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1160.99.1.el7.x86_64.rpm perf-3.10.0-1160.99.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.99.1.el7.x86_64.rpm python-perf-3.10.0-1160.99.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.99.1.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: bpftool-debuginfo-3.10.0-1160.99.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.99.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.99.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.99.1.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:4819-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4819
Issue date: 2023-08-29

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.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 information leak kernel update bug fix security fix Red Hat Enterprise Linux important

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

2215768 - CVE-2023-35788 kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt()

2217845 - CVE-2023-20593 hw: amd: Cross-Process Information Leak

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