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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.

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.

References

Related notices

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

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Further reading