GNU Chess: Buffer overflow

2021-07-12T00:00:00
ID GLSA-202107-28
Type gentoo
Reporter Gentoo Foundation
Modified 2021-07-12T00:00:00

Description

Background

GNU Chess is a console based chess interfae.

Description

The cmd_pgnload() and cmd_pgnreplay() functions in cmd.cc in GNU Chess to not sufficiently validate PGN file input, potentially resulting in a buffer overflow.

Impact

A remote attacker could entice a user to open a specially crafted PGN file using GNU Chess, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All GNU Chess users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=games-board/gnuchess-6.2.8-r1"