| Name | CVE-2016-9296 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 844344 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| p7zip (PTS) | jessie, jessie (lts) | 9.20.1~dfsg.1-4.1+deb8u3 | fixed |
| stretch (security), stretch (lts), stretch | 16.02+dfsg-3+deb9u1 | fixed |
| buster | 16.02+dfsg-6 | fixed |
| bullseye, bookworm | 16.02+dfsg-8 | fixed |
| sid, trixie | 16.02+transitional.1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| p7zip | source | wheezy | (not affected) | | | |
| p7zip | source | jessie | (not affected) | | | |
| p7zip | source | (unstable) | 16.02+dfsg-2 | unimportant | | 844344 |
Notes
[jessie] - p7zip <not-affected> (Vulnerable code with potential NULL pointer dereference introduced later)
[wheezy] - p7zip <not-affected> (Vulnerable code with potential NULL pointer dereference introduced later)
https://sourceforge.net/p/p7zip/bugs/185/
no security impact