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Red Hat Enterprise Linux 7: RHSA-2022-7337-01 Important Kernel Update

red hat
Calendar Grey November 2, 2022
Dist Redhat Esm H88
Security Alert RHSA-2023-1234-01 for Red Hat Enterprise Linux offering crucial kernel enhancements and issue resolutions.
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):
* a use-after-free in cls_route filter implementation may lead to privilege escalation (CVE-2022-2588)
* RetBleed Arbitrary Speculative Code Execution with Return Instructions (CVE-2022-23816, CVE-2022-29900)
* Branch Type Confusion (non-retbleed) (CVE-2022-23825)
* Intel: Post-barrier Return Stack Buffer Predictions (CVE-2022-26373)
* Intel: RetBleed Arbitrary Speculative Code Execution with Return Instructions (CVE-2022-29901)
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):
* lpfc panics in lpfc_els_free_iocb() during port recovery (BZ#1969988)
* mlx5 reports error messages during shutdown then panic with mce (BZ#2077711)
* Kernel panic due to hard lockup caused by deadlock between tasklist_lock and k_itimer->it_lock (BZ#2115147)
* fix excess double put in nfs_prime_dcache (BZ#2117856)

Topics%20covered

Topics Covered

security advisory kernel update privilege escalation bug fix arbitrary code execution Red Hat Enterprise Linux important security

References

https://access.redhat.com/security/cve/CVE-2022-2588 https://access.redhat.com/security/cve/CVE-2022-23816 https://access.redhat.com/security/cve/CVE-2022-23825 https://access.redhat.com/security/cve/CVE-2022-26373 https://access.redhat.com/security/cve/CVE-2022-29900 https://access.redhat.com/security/cve/CVE-2022-29901 https://access.redhat.com/security/updates/classification#important https://access.redhat.com/solutions/6971358

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: kernel-3.10.0-1160.80.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-1160.80.1.el7.noarch.rpm kernel-doc-3.10.0-1160.80.1.el7.noarch.rpm
x86_64: bpftool-3.10.0-1160.80.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1160.80.1.el7.x86_64.rpm kernel-3.10.0-1160.80.1.el7.x86_64.rpm kernel-debug-3.10.0-1160.80.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.80.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1160.80.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.80.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.80.1.el7.x86_64.rpm kernel-devel-3.10.0-1160.80.1.el7.x86_64.rpm kernel-headers-3.10.0-1160.80.1.el7.x86_64.rpm kernel-tools-3.10.0-1160.80.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.80.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1160.80.1.el7.x86_64.rpm perf-3.10.0-1160.80.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.80.1.el7.x86_64.rpm python-perf-3.10.0-1160.80.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.80.1.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: bpftool-debuginfo-3.10.0-1160.80.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.80.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.80.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.80.1.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:7337-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:7337
Issue date: 2022-11-02

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 kernel update privilege escalation bug fix arbitrary code execution Red Hat Enterprise Linux important security

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

2090226 - CVE-2022-23816 CVE-2022-29900 hw: cpu: AMD: RetBleed Arbitrary Speculative Code Execution with Return Instructions

2103148 - CVE-2022-29901 hw: cpu: Intel: RetBleed Arbitrary Speculative Code Execution with Return Instructions

2103153 - CVE-2022-23825 hw: cpu: AMD: Branch Type Confusion (non-retbleed)

2114849 - CVE-2022-2588 kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation

2115065 - CVE-2022-26373 hw: cpu: Intel: Post-barrier Return Stack Buffer Predictions

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