MEDIUMUnknown →
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-9
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.)
Affected packages
- libarchive
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- 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
Structured record: https://ubuntu.com/security/CVE-2025-64031
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
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