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USN-5583-2: systemd regression

14 September 2022

USN-5583-1 caused a regression in systemd



  • systemd - system and service manager


USN-5583-1 fixed vulnerabilities in systemd. Unfortunately this caused a
regression by introducing networking problems for some users. This update fixes
the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that systemd incorrectly handled certain DNS requests,
which leads to user-after-free vulnerability. An attacker could possibly use
this issue to cause a crash or execute arbitrary code. (CVE-2022-2526)

Update instructions

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

Ubuntu 18.04

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

Related notices

  • USN-5583-1: systemd-container, systemd-tests, udev, systemd-journal-remote, libpam-systemd, libnss-resolve, systemd, libnss-mymachines, systemd-sysv, libnss-myhostname, libnss-systemd, libsystemd0, libudev-dev, systemd-coredump, libsystemd-dev, libudev1