A security issue has been reported in CrossFire, which can be exploited by malicious, local users to perform certain actions with escalated privileges.
The security issue is caused due to the "maps/Info/combine.pl" script of the map pack using temporary files in an insecure manner. This can be exploited to e.g. overwrite arbitrary files via symlink attacks.
The security issue is reported in version 1.11.0 of the map pack (Big World).
Solution: Restrict local access to trusted users only.
Provided and/or discovered by: Reported by Dmitry E. Oboukhov in a Debian bug report.
Original Advisory: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=496358
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