GHSA-2v49-qr2f-xxxpMediumCVSS 6.1
unarr through 1.1.1 contains an off-by-one heap-based buffer overflow in tar_get_name() in tar...
🔗 CVE IDs covered (1)
📋 Description
unarr through 1.1.1 contains an off-by-one heap-based buffer overflow in tar_get_name() in tar/parse-tar.c, reachable through the ar_entry_get_name() API. Attackers can supply a crafted TAR archive with a full ustar prefix and name to write a NUL byte past the allocation, corrupting heap memory and crashing the process.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-111273
- https://github.com/selmf/unarr
- https://github.com/selmf/unarr/blob/b211040df83dee513362cdeb9bd87afa26fd5e38/tar/parse-tar.c#L242-L254
- https://hackmd.io/@haind-pwn/unarr-tar-zip-oob
- https://www.vulncheck.com/advisories/unarr-through-1.1.1-off-by-one-heap-buffer-overflow-via-tar-get-name
- https://hackmd.io/@haind-pwn/cve-2026-111273-111274-unarr-tar-zip-oob
- https://github.com/advisories/GHSA-2v49-qr2f-xxxp