bsd-games: Local privilege escalation in tetris-bsd

bsd-games: Local privilege escalation in tetris-bsd tetris-bsd is prone to local privilege escalation vulnerabilities. bsd-games 2006-03-29 2006-05-22 122399 local 2.17-r1 2.17-r1

bsd-games is a collection of NetBSD games ported to Linux.

Tavis Ormandy of the Gentoo Linux Security Audit Team discovered that the checkscores() function in scores.c reads in the data from the /var/games/tetris-bsd.scores file without validation, rendering it vulnerable to buffer overflows and incompatible with the system used for managing games on Gentoo Linux. As a result, it cannot be played securely on systems with multiple users. Please note that this is probably a Gentoo-specific issue.

A local user who is a member of group "games" may be able to modify the tetris-bsd.scores file to trigger the execution of arbitrary code with the privileges of other players.

Do not add untrusted users to the "games" group.

All bsd-games users are advised to update to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=games-misc/bsd-games-2.17-r1"

CVE-2006-1539 jaervosz DerCorny DerCorny