Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| 7-Zip | P7Zip | 16.02 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/94294Third Party AdvisoryVDB Entry
- https://github.com/yangke/7zip-null-pointer-dereferenceIssue TrackingPatchThird Party Advisory
- https://sourceforge.net/p/p7zip/bugs/185/Issue TrackingThird Party Advisory
- https://sourceforge.net/p/p7zip/discussion/383043/thread/648d34db/ExploitThird Party Advisory
- http://www.securityfocus.com/bid/94294Third Party AdvisoryVDB Entry
- https://github.com/yangke/7zip-null-pointer-dereferenceIssue TrackingPatchThird Party Advisory
- https://sourceforge.net/p/p7zip/bugs/185/Issue TrackingThird Party Advisory
- https://sourceforge.net/p/p7zip/discussion/383043/thread/648d34db/ExploitThird Party Advisory
FAQ
What is CVE-2016-9296?
CVE-2016-9296 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...
How severe is CVE-2016-9296?
CVE-2016-9296 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-9296?
Check the references section above for vendor advisories and patch information. Affected products include: 7-Zip P7Zip.