CVE-2025-31115

Published: March 4, 2025
XZ Utils provide a general-purpose data-compression library plus command-line tools. In XZ Utils 5.3.3alpha to 5.8.0, the multithreaded .xz decoder in liblzma has a bug where invalid input can at least result in a crash. The effects include heap use after free and writing to an address based on the null pointer plus an offset. Applications and libraries that use the lzma_stream_decoder_mt function are affected. The bug has been fixed in XZ Utils 5.8.1, and the fix has been committed to the v5.4, v5.6, v5.8, and master branches in the xz Git repository. No new release packages will be made from the old stable branches, but a standalone patch is available that applies to all affected releases.
Unknown
CVSS v2:

Status

DocFilters Release Package State Justification Comment
22.3 lzma (17.01) Needs Triage
22.2 lzma (17.01) Needs Triage
22.1 lzma (17.01) Needs Triage
21.11.1 lzma (17.01) Needs Triage
21.11 lzma (17.01) Needs Triage
21.8.1 lzma (17.01) Needs Triage
21.8 lzma (17.01) Needs Triage
21.5.1 lzma (17.01) Needs Triage
21.5.0 lzma (17.01) Needs Triage
21.2.0 lzma (17.01) Needs Triage
11.4.20 lzma (17.01) Needs Triage
11.4.19.3667 lzma (17.01) Needs Triage
11.4.18.3599 lzma (17.01) Needs Triage
11.4.17 lzma (17.01) Needs Triage
11.4.16.3445 lzma (17.01) Needs Triage
11.4.15.3368 lzma (17.01) Needs Triage
11.4.14.3263 lzma (17.01) Needs Triage
11.4.13.3179 lzma (17.01) Needs Triage
11.4.12.3054 lzma (17.01) Needs Triage
11.4.11.3040 lzma (17.01) Needs Triage
11.4.11.2990 lzma (17.01) Needs Triage
11.4.10.2934 lzma (17.01) Needs Triage
11.4.9.2878 lzma (17.01) Needs Triage
11.4.8.2822 lzma (17.01) Needs Triage

Severity score breakdown

References