Buffer overflow in 7-Zip
CVE-2016-2334
Heap-based buffer overflow in the NArchive::NHfs::CHandler::ExtractZlibFile method in 7zip before 16.00 and p7zip allows remote attackers to execute arbitrary code via a crafted HFS+ image.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.147 (96.6th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.147 · newest: 0.147 · change: 0.000
Affected products
- 7-Zip
- Oracle Solaris
- Fedoraproject Fedora — versions 23, 24
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- blog.talosintelligence.com/2017/11/exploiting-cve-2016-2334.html
- www.talosintel.com/reports/TALOS-2016-0093/ (Exploit, Third Party Advisory)
- blog.talosintel.com/2016/05/multiple-7-zip-vulnerabilities.html (Exploit, Third Party Advisory)
- www.securityfocus.com/bid/90531 (VDB Entry, Third Party Advisory, vdb-entry)
- security.gentoo.org/glsa/201701-27 (vendor-advisory)
- www.securitytracker.com/id/1035876 (VDB Entry, Third Party Advisory, vdb-entry)
- www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html (Patch, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2016-2334?
- CVE-2016-2334 is a high-severity vulnerability in 7-Zip, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2016-12-13.
- How severe is CVE-2016-2334?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2016-2334 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.