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Gentoo: 200407-14 High: Unreal Tournament Remote Code Exec Threat

Game servers based on the Unreal engine are vulnerable to remote code execution through malformed 'secure' queries.. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200407-14 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: Unreal Tournament 2003/2004: Buffer overflow in 'secure' queries Date: July 19, 2004 Bugs: #54726 ID: 200407-14 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= Game servers based on the Unreal engine are vulnerable to remote code execution through malformed 'secure' queries. Background ========= Unreal Tournament 2003 and 2004 are popular first-person-shooter games. They are both based on the Unreal engine, and can be used in a game server / client setup. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 games-fps/ut2003 = 2225-r3 2 games-server/ut2003-ded = 2225-r2 3 games-fps/ut2004 < 3236 > = 3236 4 games-fps/ut2004-demo = 3120-r4 ------------------------------------------------------------------- 4 affected packages on all of their supported architectures. ------------------------------------------------------------------- Description ========== The Unreal-based game servers support a specific type of query called 'secure'. Part of the Gamespy protocol, this query is used to ask if the game server is able to calculate an exact response using a provided string. Luigi Auriemma found that sending along 'secure' query triggers a buffer overflow in the game server. Impact ===== By sending a malicious UDP-based 'secure' query, an attacker could execute arbitrary code on the game server. Workaround ========= Users can avoid this vulnerability by not using Unreal Tournament to host games as a server. All users running a server should upgrade to the latest versions. Resolution ========= All Unreal Tournament users should upgrade to the latest available versions: # emerge sync # emerge -pv "> =games-fps/ut2003-2225-r3" # emerge "> =games-fps/ut2003-2225-r3" # emerge -pv "> =games-server/ut2003-ded-2225-r2" # emerge "> =games-server/ut2003-ded-2225-r2" # emerge -pv "> =games-fps/ut2004-3236" # emerge "> =games-fps/ut2004-3236" # emerge -pv "> =games-fps/ut2004-demo-3120-r4" # emerge "> =games-fps/ut2004-demo-3120-r4" References ========= [ 1 ] Luigi Auriemma advisory http://aluigi.altervista.org/adv/unsecure-adv.txt [ 2 ] CAN-2004-0608 https://www.cve.org/CVERecord?id=CAN-2004-0608 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/200407-14 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 This email address is being protected from spambots. You need JavaScript enabled to view it. or alternatively, you may file a bug at https://bugs.gentoo.org/. License ====== Copyright 2004 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/1.0/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Thunderbird - iD8DBQFA/DTKvcL1obalX08RAgTuAJ9OO9liZjNIe+ppMH6VJDMu2jN2kgCdFiqG vW8WTs/dUn4uk79cCI5AIi0=Ml07 -----END PGP SIGNATURE----- . Urgent security alert for Unreal Tournament2003/2004 regarding buffer overflow risks from unknown queries. Immediate action is required to prevent exploitation. Unreal Tournament, Gentoo Security Advisory, Remote Code Execution, Gaming Threats. . LinuxSecurity.com Team

Jul 19, 2004 Gentoo