Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 13 | p7zip | 15.14.1+dfsg-2 | — |
| Debian 12 | p7zip | 15.14.1+dfsg-2 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | p7zip | 16.02-2.1 | openSUSE-SU-2024:10322-1 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
icewall/CVE-2016-2334 ★ 11 · Nov 27, 2017
Exploiting CVE-2016-2334 7zip HFS+ vulnerability
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- openSUSE-SU-2024:10322-1 p7zip-16.02-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- FEDORA-2016-bbcb0e4eb4 vendor-advisory
- http://blog.talosintelligence.com/2017/11/exploiting-cve-2016-2334.html
- http://www.talosintel.com/reports/TALOS-2016-0093/
- http://blog.talosintel.com/2016/05/multiple-7-zip-vulnerabilities.html
- 90531 vdb-entry
- GLSA-201701-27 vendor-advisory
- 1035876 vdb-entry
- http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html
- FEDORA-2016-430bc0f808 vendor-advisory