1. Ubuntu Security Notices
  2. USN-7287-1

USN-7287-1: libcap2 vulnerability

Publication date

24 February 2025

Overview

libcap2 would allow unintended capabilities.

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.

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.

Update instructions

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

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
24.10 oracular libpam-cap –  1:2.66-5ubuntu3.1
24.04 noble libpam-cap –  1:2.66-5ubuntu2.2
22.04 jammy libpam-cap –  1:2.44-1ubuntu0.22.04.2
20.04 focal libpam-cap –  1:2.32-1ubuntu0.2

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References

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