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USN-5583-2: systemd regression

14 September 2022

USN-5583-1 caused a regression in systemd

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Releases

Packages

  • systemd - system and service manager

Details

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)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

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