| Name | CVE-2023-31102 |
| Description | Ppmd7.c in 7-Zip before 23.00 allows an integer underflow and invalid read operation via a crafted 7Z archive. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| 7zip (PTS) | bookworm | 22.01+dfsg-8+deb12u1 | vulnerable |
| trixie | 25.01+dfsg-1~deb13u1 | fixed |
| forky | 26.00+dfsg-2 | fixed |
| sid | 26.00+dfsg-4 | fixed |
| p7zip (PTS) | bookworm, bullseye | 16.02+dfsg-8 | vulnerable |
| 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 |
|---|
| 7zip | source | (unstable) | 23.01+dfsg-1 | | | |
| p7zip | source | (unstable) | 16.02+transitional.1 | | | |
Notes
[bookworm] - 7zip <no-dsa> (Minor issue; will be fixed via point release)
https://www.zerodayinitiative.com/advisories/ZDI-23-1165/
https://sourceforge.net/p/sevenzip/discussion/45797/thread/713c8a8269/
https://ds-security.com/post/integer-overflow-in-7-zip-cve-2023-31102/
Since p7zip/16.02+transitional.1 src:p7zip is only a empty source package
depending on 7zip. Mark this version as fixed version.