Deadlock Affecting systemd-rpm-macros package, versions <0:250-12.el9_1.3


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-RHEL9-SYSTEMDRPMMACROS-7864370
  • published3 Sept 2024
  • disclosed18 Oct 2022

Introduced: 18 Oct 2022

CVE-2022-45873  (opens in a new tab)
CWE-833  (opens in a new tab)

How to fix?

Upgrade RHEL:9 systemd-rpm-macros to version 0:250-12.el9_1.3 or higher.
This issue was patched in RHSA-2023:0954.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd-rpm-macros package and not the systemd-rpm-macros package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

systemd 250 and 251 allows local users to achieve a systemd-coredump deadlock by triggering a crash that has a long backtrace. This occurs in parse_elf_object in shared/elf-util.c. The exploitation methodology is to crash a binary calling the same function recursively, and put it in a deeply nested directory to make its backtrace large enough to cause the deadlock. This must be done 16 times when MaxConnections=16 is set for the systemd/units/systemd-coredump.socket file.

CVSS Scores

version 3.1