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Red Hat 8.2: RHSA-2022-6162 Important: Systemd Use-After-Free Issue

red hat
Calendar Grey August 24, 2022
Dist Redhat Esm H88
An essential patch for systemd in Red Hat Enterprise Linux 8.2 has been released to address significant security flaws and enhance overall protection.
An update for systemd is now available for Red Hat Enterprise Linux 8.2 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

Summary

The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. In addition, it supports snapshotting and restoring of the system state, maintains mount and automount points, and implements an elaborate transactional dependency-based service control logic. It can also work as a drop-in replacement for sysvinit.
Security Fix(es):
* systemd-resolved: use-after-free when dealing with DnsStream in resolved-dns-stream.c (CVE-2022-2526)
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.

Topics%20covered

Topics Covered

security advisory security update Red Hat Enterprise Linux important use-after-free systemd service manager

References

https://access.redhat.com/security/cve/CVE-2022-2526 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS EUS (v. 8.2):
Source: systemd-239-31.el8_2.9.src.rpm
aarch64: systemd-239-31.el8_2.9.aarch64.rpm systemd-container-239-31.el8_2.9.aarch64.rpm systemd-container-debuginfo-239-31.el8_2.9.aarch64.rpm systemd-debuginfo-239-31.el8_2.9.aarch64.rpm systemd-debugsource-239-31.el8_2.9.aarch64.rpm systemd-devel-239-31.el8_2.9.aarch64.rpm systemd-journal-remote-239-31.el8_2.9.aarch64.rpm systemd-journal-remote-debuginfo-239-31.el8_2.9.aarch64.rpm systemd-libs-239-31.el8_2.9.aarch64.rpm systemd-libs-debuginfo-239-31.el8_2.9.aarch64.rpm systemd-pam-239-31.el8_2.9.aarch64.rpm systemd-pam-debuginfo-239-31.el8_2.9.aarch64.rpm systemd-tests-239-31.el8_2.9.aarch64.rpm systemd-tests-debuginfo-239-31.el8_2.9.aarch64.rpm systemd-udev-239-31.el8_2.9.aarch64.rpm systemd-udev-debuginfo-239-31.el8_2.9.aarch64.rpm
ppc64le: systemd-239-31.el8_2.9.ppc64le.rpm systemd-container-239-31.el8_2.9.ppc64le.rpm systemd-container-debuginfo-239-31.el8_2.9.ppc64le.rpm systemd-debuginfo-239-31.el8_2.9.ppc64le.rpm systemd-debugsource-239-31.el8_2.9.ppc64le.rpm systemd-devel-239-31.el8_2.9.ppc64le.rpm systemd-journal-remote-239-31.el8_2.9.ppc64le.rpm systemd-journal-remote-debuginfo-239-31.el8_2.9.ppc64le.rpm systemd-libs-239-31.el8_2.9.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:6162-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:6162
Issue date: 2022-08-24

Topic

An update for systemd is now available for Red Hat Enterprise Linux 8.2Extended 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 update Red Hat Enterprise Linux important use-after-free systemd service manager

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS EUS (v. 8.2) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

2109926 - CVE-2022-2526 systemd-resolved: use-after-free when dealing with DnsStream in resolved-dns-stream.c

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