Crossfire server: Denial of Service and potential arbitrary code execution
Gentoo Linux Security Advisory
||GLSA 200604-11 / Crossfire
||April 22, 2006
||April 22, 2006: 01
All supported architectures
The Crossfire game server is vulnerable to a Denial of Service and
potentially to the execution of arbitrary code.
Crossfire is a cooperative multiplayer graphical adventure and
role-playing game. The Crossfire game server allows various compatible
clients to connect to participate in a cooperative game.
Luigi Auriemma discovered a vulnerability in the Crossfire game
server, in the handling of the "oldsocketmode" option when processing
overly large requests.
An attacker can set up a malicious Crossfire client that would
send a large request in "oldsocketmode", resulting in a Denial of
Service on the Crossfire server and potentially in the execution of
arbitrary code on the server with the rights of the game server.
There is no known workaround at this time.
All Crossfire server users should upgrade to the latest version:
Code Listing 3.1: Resolution
# emerge --sync
# emerge --ask --oneshot --verbose ">=games-server/crossfire-server-1.9.0"