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USN-5583-1: systemd vulnerability

29 August 2022

systemd could be made to crash or run programs if it received specially crafted DNS request.



  • systemd - system and service manager


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-5583-2: libnss-resolve, libnss-systemd, systemd-journal-remote, libpam-systemd, systemd-sysv, libudev1, systemd-container, systemd-coredump, libsystemd0, libnss-myhostname, libsystemd-dev, libnss-mymachines, systemd, systemd-tests, libudev-dev, udev