CVE-2016-9296

Public Exploit

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.04% Top 25%
Third-Party Advisory securityfocus.com Third-Party Advisory github.com Third-Party Advisory sourceforge.net Third-Party Advisory sourceforge.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/94294 third party advisory vdb entry
https://sourceforge.net/p/p7zip/bugs/185/ third party advisory issue tracking
https://sourceforge.net/p/p7zip/discussion/383043/thread/648d34db/ third party advisory exploit
https://github.com/yangke/7zip-null-pointer-dereference patch third party advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2016-9296?
CVE-2016-9296 has been scored as a high severity vulnerability.
How to fix CVE-2016-9296?
To fix CVE-2016-9296, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-9296 being actively exploited in the wild?
It is possible that CVE-2016-9296 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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