GLSA 200603-23: NetHack, Slash'EM, Falcon's Eye: Local privilege escalation

http://security.gentoo.org/

Severity:	normal
Title:	NetHack, Slash'EM, Falcon's Eye: Local privilege escalation
Date:	03/23/2006
Bugs:	#125902, #122376, #127167, #127319
ID:	200603-23

Synopsis

NetHack, Slash'EM and Falcon's Eye are vulnerable to local privilege escalation vulnerabilities that could potentially allow the execution of arbitrary code as other users.

Background

NetHack is the classic single player dungeon exploration game. Slash'EM and Falcon's Eye are NetHack variants.

Affected packages

Package	Vulnerable	Architecture(s)
games-roguelike/nethack	<= 3.4.3-r1	All supported architectures
games-roguelike/falconseye	<= 1.9.4a	All supported architectures
games-roguelike/slashem	<= 0.0.760	All supported architectures

Description

NetHack, Slash'EM and Falcon's Eye have been found to be incompatible with the system used for managing games on Gentoo Linux. As a result, they cannot be played securely on systems with multiple users.

Impact

A local user who is a member of group "games" may be able to modify the state data used by NetHack, Slash'EM or Falcon's Eye to trigger the execution of arbitrary code with the privileges of other players. Additionally, the games may create save game files in a manner not suitable for use on Gentoo Linux, potentially allowing a local user to create or overwrite files with the permissions of other players.

Workaround

Do not add untrusted users to the "games" group.

Resolution

NetHack has been masked in Portage pending the resolution of these issues. Vulnerable NetHack users are advised to uninstall the package until further notice.

    # emerge --ask --verbose --unmerge "games-roguelike/nethack"

Slash'EM has been masked in Portage pending the resolution of these issues. Vulnerable Slash'EM users are advised to uninstall the package until further notice.


    # emerge --ask --verbose --unmerge "games-roguelike/slashem"

Falcon's Eye has been masked in Portage pending the resolution of these issues. Vulnerable Falcon's Eye users are advised to uninstall the package until further notice.


    # emerge --ask --verbose --unmerge "games-roguelike/falconseye"

References

CVE-2006-1390

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200603-23.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.