VULNERABILITY

Ubuntu: USN-7287-1 (CVE-2025-1390): libcap2 vulnerability

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Ubuntu: USN-7287-1 (CVE-2025-1390): libcap2 vulnerability

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
02/18/2025
Created
03/10/2025
Added
02/25/2025
Modified
03/06/2025

Description

The PAM module pam_cap.so of libcap configuration supports group names starting with “@”, during actual parsing, configurations not starting with “@” are incorrectly recognized as group names. This may result in nonintended users being granted an inherited capability set, potentially leading to security risks. Attackers can exploit this vulnerability to achieve local privilege escalation on systems where /etc/security/capability.conf is used to configure user inherited privileges by constructing specific usernames.

Solution(s)

  • ubuntu-upgrade-libpam-cap

References

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