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USN-5169-1: oddjob vulnerability

9 August 2022

oddjob could be made to overwrite file and directory permissions.

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Releases

Packages

  • oddjob - D-Bus service which runs odd jobs -- daemon

Details

Matthias Gerstner discovered that there was a race condition in the mkhomedir
tool shipped with the oddjob package. An authenticated attacker could use this
to setup a symlink attack and change permissions on files on the host filesystem.

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 20.04
Ubuntu 18.04
Ubuntu 16.04

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

References

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Further reading