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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.

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Releases

Packages

  • systemd - system and service manager

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)

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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.

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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.

References

Related notices

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

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Further reading