Quake 3 engine remapShader command buffer overflow

quake3-remapshader-client-bo (26264) The risk level is classified as HighHigh Risk


Quake 3 is vulnerable to a buffer overflow, caused by improper bounds checking of the remapShader command. By sending a specially-crafted remapShader command, a remote attacker could overflow a buffer and execute arbitrary code on a Quake 3 client system, if the attacker could persuade a potential victim to connect to a malicious game server.

Note: This vulnerability affects any game that uses the Quake 3 Engine and the remapShader command.


Gain Access


Apply the patch for this vulnerability, available from the id Software Web site. See References.

For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 2006-05-12 for patch, upgrade, or suggested workaround information. See References.


  • Full-Disclosure Mailing List, Mon May 08 2006 - 17:44:01 CDT: Two independent vulnerabilities (client and server side) in Quake3 engine and many derived games.
  • id Software Web site: id Software.
  • BID-17857: Quake 3 Engine remapShader Command Remote Buffer Overflow Vulnerability
  • CVE-2006-2236: Buffer overflow in the Quake 3 Engine, as used by (1) ET 2.60, (2) Return to Castle Wolfenstein 1.41, and (3) Quake III Arena 1.32b allows remote attackers to execute arbitrary commands via a long remapShader command.
  • GLSA-200605-12: Quake 3 engine based games: Buffer Overflow
  • OSVDB ID: 25279: Quake 3 Engine remapShader Command Overflow
  • SA19984: Quake3 Engine "remapShader" Buffer Overflow and Directory Traversal

Platforms Affected:

  • Gentoo Linux
  • id Software Quake 3 Arena 1.32b


May 05, 2006

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email ignore thisxforceignore this@ignore thisus.ignore thisibm.comignore this

Return to the main page