USN-7287-1: libcap2 vulnerability

24 February 2025

libcap2 would allow unintended capabilities.

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Releases

Packages

  • libcap2 - POSIX 1003.1e capabilities (library)

Details

Tianjia Zhang discovered the libcap2 PAM module pam_cap incorrectly
handled parsing group names in the configuration file. This could result in
certain users being granted capabilities, contrary to expectations.

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 24.10
Ubuntu 24.04
Ubuntu 22.04
Ubuntu 20.04

After a standard system update you need to reboot your computer to make all
the necessary changes.

References

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Further reading