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CVE-2025-5745

CVE-2025-5745

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 5.6 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • glibc

    Versions
    • 2.40: Affected (custom)

    No fix published

  • glibc Debian:13

    Affected ranges
    • ECOSYSTEM: < 2.41-9

    Update to 2.41-9

  • glibc Debian:14

    Affected ranges
    • ECOSYSTEM: < 2.41-9

    Update to 2.41-9

Original sources

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