gnuchess: GNU Chess 6.2.7 allows attackers to execute arbitrary code via crafted PGN(Portable Game Notation) data
CVE-2021-30184 is fixed in gnuchess on 1 platform, first by gnuchess 6.2.7-1+deb11u1build0.22.04.1, released April 7, 2021. It is not reported as exploited. Patch Radar priority: Routine.
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 theuse of a .tmp.epd temporary file in the cmd_pgnload and cmd_pgnreplayfunctions in frontend/cmd.cc.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| gnuchess · Debian 11.6 (bullseye) | 6.2.7-1+deb11u1 | DLA-4014-1 | Jan 12, 2025 |
| gnuchess · Ubuntu 22.04.1 LTS (jammy) | 6.2.7-1+deb11u1build0.22.04.1 | gnuchess 6.2.7-1+deb11u1build0.22.04.1 | Apr 7, 2021 |
| gnuchess · Ubuntu 24.04.5 LTS (noble) | 6.2.7-1+deb11u1build0.24.04.1 | gnuchess 6.2.7-1+deb11u1build0.24.04.1 | Apr 7, 2021 |
| gnuchess · Ubuntu 24.10 (oracular) | 6.2.7-1+deb11u1build0.24.10.1 | gnuchess 6.2.7-1+deb11u1build0.24.10.1 | Jan 16, 2026 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.