Multiple buffer overflows in rogue on NetBSD 1.6 and earlier, FreeBSD 4.6, and possibly other operating systems, allows local users to gain "games" group privileges via malformed entries in a game save file.
https://exchange.xforce.ibmcloud.com/vulnerabilities/10261
http://www.securityfocus.com/bid/5837
http://secunia.com/advisories/7252