CVE-2009-10006

published 2025-08-22

CVE-2009-10006: UFO: Alien Invasion versions up to and including 2.2.1 contain a buffer overflow vulnerability in its built-in IRC client component. When the client connects…

Priority P2 62 critical 9.3 CVSS 4.0

AV N AC L AT N PR N UI N VC H VI H VA H SC N SI N SA N E X CR X IR X AR X MAV X MAC X MAT X MPR X MUI X MVC X MVI X MVA X MSC X MSI X MSA X S X AU X R X V X RE X U X

EXPLOIT

UFO: Alien Invasion versions up to and including 2.2.1 contain a buffer overflow vulnerability in its built-in IRC client component. When the client connects to an IRC server and receives a crafted numeric reply (specifically a 001 message), the application fails to properly validate the length of the response string. This results in a stack-based buffer overflow, which may corrupt control flow structures and allow arbitrary code execution. The vulnerability is triggered during automatic IRC connection handling and does not require user interaction beyond launching the game.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
ufo_alien_invasion_project	ufo_alien_invasion	<= 2.2.1	—

Detection & IOCs extracted from sources · hover to see the quote

• → The vulnerability is triggered when the UFO: Alien Invasion IRC client receives a crafted IRC numeric 001 (welcome) reply with an oversized response string, causing a stack-based buffer overflow ↗
• → Exploitation does not require user interaction beyond launching the game; monitor for UFO: Alien Invasion processes initiating IRC connections to unexpected or untrusted servers ↗
• → A Metasploit module exists for this vulnerability targeting macOS (osx/misc/ufo_ai), which can be used as a reference for building detection signatures against exploit attempts ↗

• · Affected versions are limited to UFO: Alien Invasion 2.2.1 and earlier; the overflow occurs specifically in the built-in IRC client component, not a standalone IRC application ↗

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