Description
XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzma_index_decoder() was used to decode an Index that contained no Records, the resulting lzma_index was left in a state where where a subsequent lzma_index_append() would allocate too little memory, and a buffer overflow would occur. This issue has been patched in version 5.8.3.
Metrics
CVSS 3.1 5.3/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| tukaani-project | xz | < 5.8.3 |
References
- https://github.com/tukaani-project/xz/commit/c8c22869e780ff57c96b46939c3d79ff99395f87Patch
- https://github.com/tukaani-project/xz/releases/tag/v5.8.3Product, Release Notes
- https://github.com/tukaani-project/xz/security/advisories/GHSA-x872-m794-cxhvVendor Advisory
- http://www.openwall.com/lists/oss-security/2026/03/31/13Mailing List, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2026/07/msg00034.html
Timeline
- Published
- Apr 2, 2026
- Last modified
- Jul 24, 2026
- NVD status
- Modified