DescriptionGNU 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/
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Debian Bugs986801

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
gnuchess (PTS)buster6.2.5-1vulnerable
bookworm, sid, bullseye6.2.7-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[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)

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