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Red Hat Security Advisory 2023-4022-01

Red Hat Security Advisory 2023-4022-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include double free, privilege escalation, and use-after-free vulnerabilities.

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=====================================================================
Red Hat Security Advisory

Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2023:4022-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4022
Issue date: 2023-07-11
CVE Names: CVE-2022-2588
=====================================================================

Summary:

An update for kernel is now available for Red Hat Enterprise Linux 7.7
Advanced Update Support, Red Hat Enterprise Linux 7.7 Telco Extended Update
Support, and Red Hat Enterprise Linux 7.7 Update Services for SAP
Solutions.

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.

Relevant releases/architectures:

Red Hat Enterprise Linux Server AUS (v. 7.7) - noarch, x86_64
Red Hat Enterprise Linux Server E4S (v. 7.7) - noarch, ppc64le, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.7) - x86_64
Red Hat Enterprise Linux Server Optional E4S (v. 7.7) - ppc64le, x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 7.7) - x86_64
Red Hat Enterprise Linux Server TUS (v. 7.7) - noarch, x86_64

Description:

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security Fix(es):

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

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):

The iscsi target deadlocks when the same host acts as an initiator to
itself (i.e. connects via 127.0.0.1) (BZ#2183540)
Double free issue in filelayout_alloc_commit_info (BZ#2212868)
RHEL 7.2: XFS inode cluster corruption (BZ#2213360)

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.

Bugs fixed (https://bugzilla.redhat.com/):

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

Package List:

Red Hat Enterprise Linux Server AUS (v. 7.7):

Source:
kernel-3.10.0-1062.76.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1062.76.1.el7.noarch.rpm
kernel-doc-3.10.0-1062.76.1.el7.noarch.rpm

x86_64:
bpftool-3.10.0-1062.76.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.76.1.el7.x86_64.rpm
kernel-3.10.0-1062.76.1.el7.x86_64.rpm
kernel-debug-3.10.0-1062.76.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.76.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.76.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.76.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.76.1.el7.x86_64.rpm
kernel-devel-3.10.0-1062.76.1.el7.x86_64.rpm
kernel-headers-3.10.0-1062.76.1.el7.x86_64.rpm
kernel-tools-3.10.0-1062.76.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.76.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.76.1.el7.x86_64.rpm
perf-3.10.0-1062.76.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.76.1.el7.x86_64.rpm
python-perf-3.10.0-1062.76.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.76.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server E4S (v. 7.7):

Source:
kernel-3.10.0-1062.76.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1062.76.1.el7.noarch.rpm
kernel-doc-3.10.0-1062.76.1.el7.noarch.rpm

ppc64le:
bpftool-3.10.0-1062.76.1.el7.ppc64le.rpm
bpftool-debuginfo-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-debug-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-devel-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-headers-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-tools-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-1062.76.1.el7.ppc64le.rpm
perf-3.10.0-1062.76.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-1062.76.1.el7.ppc64le.rpm
python-perf-3.10.0-1062.76.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-1062.76.1.el7.ppc64le.rpm

Red Hat Enterprise Linux Server TUS (v. 7.7):

Source:
kernel-3.10.0-1062.76.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1062.76.1.el7.noarch.rpm
kernel-doc-3.10.0-1062.76.1.el7.noarch.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 7.7):

x86_64:
bpftool-debuginfo-3.10.0-1062.76.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.76.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.76.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.76.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.76.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.76.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.76.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.76.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional E4S (v. 7.7):

ppc64le:
bpftool-debuginfo-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-1062.76.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-1062.76.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-1062.76.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-1062.76.1.el7.ppc64le.rpm

Red Hat Enterprise Linux Server Optional TUS (v. 7.7):

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

References:

https://access.redhat.com/security/cve/CVE-2022-2588
https://access.redhat.com/security/updates/classification/#important

Contact:

The Red Hat security contact is [email protected]. More contact
details at https://access.redhat.com/security/team/contact/

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