Crossfire server: Denial of Service and potential arbitrary code execution — GLSA 200604-11

The Crossfire game server is vulnerable to a Denial of Service and potentially to the execution of arbitrary code.

Affected Packages

games-server/crossfire-server on all architectures
Affected versions < 1.9.0
Unaffected versions >= 1.9.0

Background

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.

Description

Luigi Auriemma discovered a vulnerability in the Crossfire game server, in the handling of the "oldsocketmode" option when processing overly large requests.

Impact

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.

Workaround

There is no known workaround at this time.

Resolution

All Crossfire server users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=games-server/crossfire-server-1.9.0"

References

Release Date
April 22, 2006

Latest Revision
April 22, 2006: 01

Severity
high

Exploitable
remote

Bugzilla entries