GLSA-200604-11 : Crossfire server: Denial of Service and potential arbitrary code execution
Medium Nessus Plugin ID 21276
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200604-11 (Crossfire server: Denial of Service and potential arbitrary code execution)
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.
SolutionAll Crossfire server users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=games-server/crossfire-server-1.9.0'