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USN-5226-1: systemd vulnerability

13 January 2022

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.

Update instructions

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

Ubuntu 21.10
Ubuntu 21.04
Ubuntu 20.04

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

References