CVE-2016-2334

moderate-risk

Published 2016-12-13

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.

Do I need to act?

16.3% chance of exploitation in next 30 days

EPSS score — higher than 84% of all CVEs

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.8/10 High

LOCAL / LOW complexity

Affected Products (4)

7-Zip

Fedora

Solaris

Affected Vendors

Fedoraproject Oracle 7-Zip

References (18)

Exploit http://blog.talosintel.com/2016/05/multiple-7-zip-vulnerabilities.html

http://blog.talosintelligence.com/2017/11/exploiting-cve-2016-2334.html

Patch http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html

Third Party Advisory http://www.securityfocus.com/bid/90531

Third Party Advisory http://www.securitytracker.com/id/1035876

Exploit http://www.talosintel.com/reports/TALOS-2016-0093/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

https://security.gentoo.org/glsa/201701-27

Exploit http://blog.talosintel.com/2016/05/multiple-7-zip-vulnerabilities.html

http://blog.talosintelligence.com/2017/11/exploiting-cve-2016-2334.html

Patch http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html

Third Party Advisory http://www.securityfocus.com/bid/90531

Third Party Advisory http://www.securitytracker.com/id/1035876

Exploit http://www.talosintel.com/reports/TALOS-2016-0093/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

https://security.gentoo.org/glsa/201701-27

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moderate-risk

Severity 24/34 · High

Exploitability 13/34 · Low

Exposure 10/34 · Low