Doomsday: Format string vulnerability

Background

Doomsday is a modern gaming engine for popular ID games like Doom, Heretic and Hexen.

Description

Luigi Auriemma discovered that Doomsday incorrectly implements formatted printing.

Impact

A remote attacker could exploit these vulnerabilities to execute arbitrary code with the rights of the user running the Doomsday server or client by sending specially crafted strings.

Workaround

There is no known workaround at this time.

Resolution

All Doomsday users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=games-fps/doomsday-1.9.0_beta4"