Description
zziplib through 0.13.80 contains an out-of-bounds read vulnerability in __zzip_parse_root_directory() in zzip/zip.c that allows attackers to read past the mapped central directory in mmap builds due to an ineffective bounds check. Attackers can supply a crafted ZIP whose entry name ends at the central directory end, triggering 28-byte ZIP64 extra field over-reads via zzip_dir_open() that crash the process.
Metrics
CVSS 3.1 4.7/10
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| gdraheim | zziplib | <= 0.13.80 |
References
- https://github.com/gdraheim/zziplib
- https://github.com/gdraheim/zziplib/blob/f58313c1f65f46bf73f3526d1afd4d6bb46cc4ae/zzip/zip.c#L530-L558
- https://hackmd.io/@haind-pwn/zziplib-zip-central-directory-oob-read
- https://www.vulncheck.com/advisories/zziplib-through-0.13.80-out-of-bounds-read-via-zzip-parse-root-directory-zip64-parsing
Timeline
- Published
- Oct 15, 2026
- Last modified
- Oct 15, 2026
- NVD status
- Awaiting Analysis