Quake 3 engine remapShader command buffer overflow

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

Description:

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.

Platforms Affected:

  • Gentoo, Linux
  • id Software, Quake 3 Arena 1.32b

Remedy:

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.

Consequences:

Gain Access

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 at http://archives.neohapsis.com/archives/fulldisclosure/2006-05/0222.html.
  • id Software Web site, id Software at http://www.idsoftware.com/.
  • 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.
  • FrSIRT/ADV-2006-1676: Quake 3 Engine Remote Command Execution and Directory Traversal Vulnerabilities
  • 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

Reported:

May 05, 2006

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