CVE-2025-64031
Publication date 14 September 2026
Last updated 7 October 2026
Ubuntu priority
Description
libarchive 3.8.x before 3.8.2 has a strcpy heap-based buffer overflow in the gzip writer via the original-filename field to archive_compressor_gzip_open in archive_write_add_filter_gzip.c, aka GHSA-92wx-p669-8gr9. This relates to bsdtar. Exploitation envisions a marginally plausible scenario in which original-filename is obtained from an untrusted party. (original-filename is not derived from the input data.)
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| libarchive | 26.04 LTS resolute |
Not affected
|
| 24.04 LTS noble |
Not affected
|
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial |
Not affected
|
|
| 14.04 LTS trusty |
Not affected
|
Notes
mdeslaur
introduced in 3.8.0 by: https://github.com/libarchive/libarchive/commit/84ac71335fd7bc151be763dd525353c182b280b5
Severity score breakdown
CVSS version: CVSS v3.0
Base score
2.5 · Low
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2025-64031
- https://github.com/libarchive/libarchive/pull/2734
- https://gist.github.com/ttuurrnn/1365a4a9b1c3d5826a3a9bbe111f26b8
- https://github.com/libarchive/libarchive/blob/master/libarchive/archive_write_add_filter_gzip.c
- https://github.com/libarchive/libarchive/pull/2734/commits
- https://github.com/libarchive/libarchive/pull/2734/files