CVE-2025-64031

low

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.)

References

https://github.com/libarchive/libarchive/pull/2734/files

https://github.com/libarchive/libarchive/pull/2734/commits

https://github.com/libarchive/libarchive/pull/2734

https://github.com/libarchive/libarchive/blob/master/libarchive/archive_write_add_filter_gzip.c

https://gist.github.com/ttuurrnn/1365a4a9b1c3d5826a3a9bbe111f26b8

Details

Source: Mitre, NVD

Published: 2026-09-14

Updated: 2026-09-16

Risk Information

CVSS v2

Base Score: 1.2

Vector: CVSS2#AV:L/AC:H/Au:N/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 2.5

Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

Severity: Low

EPSS

EPSS: 0.00123