NULL Pointer Dereference Affecting p7zip package, versions <16.02+dfsg-2
Threat Intelligence
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Start learning- Snyk IDSNYK-DEBIAN13-P7ZIP-5691917
- published12 Nov 2016
- disclosed12 Nov 2016
Introduced: 12 Nov 2016
CVE-2016-9296 (opens in a new tab)How to fix?
Upgrade Debian:13 p7zip to version 16.02+dfsg-2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream p7zip package and not the p7zip package as distributed by Debian.
See How to fix? for Debian:13 relevant fixed versions and status.
A null pointer dereference bug affects the 16.02 and many old versions of p7zip. A lack of null pointer check for the variable folders.PackPositions in function CInArchive::ReadAndDecodePackedStreams in CPP/7zip/Archive/7z/7zIn.cpp, as used in the 7z.so library and in 7z applications, will cause a crash and a denial of service when decoding malformed 7z files.
References
- https://security-tracker.debian.org/tracker/CVE-2016-9296
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9296
- https://github.com/yangke/7zip-null-pointer-dereference
- https://sourceforge.net/p/p7zip/bugs/185/
- https://sourceforge.net/p/p7zip/discussion/383043/thread/648d34db/
- http://www.securityfocus.com/bid/94294