Directory Traversal Affecting zziplib package, versions <0:0.13.71-12.el9
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-ALMALINUX9-ZZIPLIB-14067907
- published20 Nov 2025
- disclosed11 Nov 2025
Introduced: 11 Nov 2025
CVE-2018-17828 (opens in a new tab)How to fix?
Upgrade AlmaLinux:9 zziplib to version 0:0.13.71-12.el9 or higher.
This issue was patched in ALSA-2025:20838.
NVD Description
Note: Versions mentioned in the description apply only to the upstream zziplib package and not the zziplib package as distributed by AlmaLinux.
See How to fix? for AlmaLinux:9 relevant fixed versions and status.
Directory traversal vulnerability in ZZIPlib 0.13.69 allows attackers to overwrite arbitrary files via a .. (dot dot) in a zip file, because of the function unzzip_cat in the bins/unzzipcat-mem.c file.
References
- https://errata.almalinux.org/10/ALSA-2025-20478.html
- https://errata.almalinux.org/9/ALSA-2025-20838.html
- https://access.redhat.com/security/cve/CVE-2018-17828
- https://vulners.com/cve/CVE-2018-17828
- https://access.redhat.com/errata/RHSA-2025:20478
- https://access.redhat.com/errata/RHSA-2025:20838
- https://github.com/gdraheim/zziplib/issues/62