vulnerability

Ubuntu: USN-7634-1 (CVE-2025-5745): GNU C Library vulnerabilities

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Jun 5, 2025
Added
Jul 10, 2025
Modified
Aug 18, 2025

Description

The strncmp implementation optimized for the Power10 processor in the GNU C Library version 2.40 and later writes to vector registers v20 to v31 without saving contents from the caller (those registers are defined as non-volatile registers by the powerpc64le ABI), resulting in overwriting of its contents and potentially altering control flow of the caller, or leaking the input strings to the function to other parts of the program.

Solution

ubuntu-upgrade-libc6
Title
NEW

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