GLSA 200603-11: Freeciv: Denial of Service

http://security.gentoo.org/

Severity:	normal
Title:	Freeciv: Denial of Service
Date:	03/16/2006
Bugs:	#125304
ID:	200603-11

Synopsis

A memory allocation bug in Freeciv allows a remote attacker to perform a Denial of Service attack.

Background

Freeciv is an open source turn-based multiplayer strategy game, similar to the famous Civilization series.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
games-strategy/freeciv	< 2.0.8	>= 2.0.8	All supported architectures

Description

Luigi Auriemma discovered that Freeciv could be tricked into the allocation of enormous chunks of memory when trying to uncompress malformed data packages, possibly leading to an out of memory condition which causes Freeciv to crash or freeze.

Impact

A remote attacker could exploit this issue to cause a Denial of Service by sending specially crafted data packages to the Freeciv game server.

Workaround

Play solo games or restrict your multiplayer games to trusted parties.

Resolution

All Freeciv users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=games-strategy/freeciv-2.0.8"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200603-11.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.