1. Ubuntu Security Notices
  2. USN-5226-1

USN-5226-1: systemd vulnerability

Publication date

13 January 2022

Overview

systemd-tmpfiles could be made to crash or have other unspecified impacts.

Releases

Packages

  • systemd - system and service manager

Details

It was discovered that systemd-tmpfiles employed uncontrolled recursion
when removing deeply nested directory hierarchies. A local attacker could
exploit this to cause systemd-tmpfiles to crash or have other unspecified
impacts.

It was discovered that systemd-tmpfiles employed uncontrolled recursion
when removing deeply nested directory hierarchies. A local attacker could
exploit this to cause systemd-tmpfiles to crash or have other unspecified
impacts.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
21.10 impish systemd –  248.3-1ubuntu8.2
21.04 hirsute systemd –  247.3-3ubuntu3.7
20.04 focal systemd –  245.4-4ubuntu3.15

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References

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