CVE-2017-5975 — Heap-based buffer overflow in the __zzip_get64 function in fetch

Heap-based buffer overflow in the __zzip_get64 function in fetch.c in zziplib 0.13.62, 0.13.61, 0.13.60, 0.13.59, 0.13.58, 0.13.57, 0.13.56 allows remote attackers to cause a denial of service (crash) via a crafted ZIP file.

01What is this vulnerability?

Heap-based buffer overflow in the __zzip_get64 function in fetch.c in zziplib 0.13.62, 0.13.61, 0.13.60, 0.13.59, 0.13.58, 0.13.57, 0.13.56 allows remote attackers to cause a denial of service (crash) via a crafted ZIP file.

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2017-03-01T15:59:01.167
• Last modified: 2026-05-13T00:24:29.033

09References

• www.debian.org — http://www.debian.org/security/2017/dsa-3878
• www.openwall.com — http://www.openwall.com/lists/oss-security/2017/02/14/3
• www.securityfocus.com — http://www.securityfocus.com/bid/96268
• blogs.gentoo.org — https://blogs.gentoo.org/ago/2017/02/09/zziplib-heap-based-buffer-overflow-in-__…
• www.debian.org — http://www.debian.org/security/2017/dsa-3878
• www.openwall.com — http://www.openwall.com/lists/oss-security/2017/02/14/3
• www.securityfocus.com — http://www.securityfocus.com/bid/96268
• blogs.gentoo.org — https://blogs.gentoo.org/ago/2017/02/09/zziplib-heap-based-buffer-overflow-in-__…