| Name | CVE-2021-30184 |
| Description | GNU Chess 6.2.7 allows attackers to execute arbitrary code via crafted PGN (Portable Game Notation) data. This is related to a buffer overflow in the use of a .tmp.epd temporary file in the cmd_pgnload and cmd_pgnreplay functions in frontend/cmd.cc. |
| 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 | 986801 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| gnuchess (PTS) | jessie | 6.1.2-1 | vulnerable |
| stretch | 6.2.4-1 | vulnerable |
| buster | 6.2.5-1 | vulnerable |
| sid, trixie, bullseye, bookworm | 6.2.7-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| gnuchess | source | jessie | (unfixed) | end-of-life | | |
| gnuchess | source | (unstable) | (unfixed) | | | 986801 |
Notes
[bookworm] - gnuchess <no-dsa> (Minor issue)
[bullseye] - gnuchess <no-dsa> (Minor issue)
[buster] - gnuchess <no-dsa> (Minor issue)
[stretch] - gnuchess <postponed> (Minor issue in a game; can be fixed in next update)
https://lists.gnu.org/archive/html/bug-gnu-chess/2021-04/msg00000.html
https://lists.gnu.org/archive/html/bug-gnu-chess/2021-04/msg00001.html