CVE-2025-31115
CVE-2025-31115
8.7
HighPublished:
Last updated:
Source:security-advisories@github.com
Deferred
CVSS Vector
v4.0- Attack Vector
- Network
- Attack Complexity
- Low
- Attack Requirements
- None
- Privileges Required
- None
- User Interaction
- None
- Confidentiality (Vulnerable)
- None
- Integrity (Vulnerable)
- None
- Availability (Vulnerable)
- High
- Confidentiality (Subsequent)
- None
- Integrity (Subsequent)
- None
- Availability (Subsequent)
- None
Description
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.
References
security-advisories@github.com
https://github.com/tukaani-project/xz/commit/d5a2ffe41bb77b918a8c96084885d4dbe4bf6480security-advisories@github.com
https://github.com/tukaani-project/xz/security/advisories/GHSA-6cc8-p5mm-29w2security-advisories@github.com
https://tukaani.org/xz/xz-cve-2025-31115.patchaf854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2025/04/03/1af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2025/04/03/2af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2025/04/03/30b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-082556.html