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CVE Database


Impact: Moderate
Public: 2012-07-09
Bugzilla: 833033: CVE-2012-3411 libvirt+dnsmasq: DNS configured to answer DNS queries from non-virtual networks


The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2012-3411 from the MITRE CVE dictionary and NIST NVD.


This issue affected the version of dnsmasq as shipped with Red Hat Enterprise Linux 6 and has been addressed via RHSA-2013:0277. This issue affects the version of dnsmasq as shipped with Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this issue as having moderate security impact. A future update may address this issue in Red Hat Enterprise Linux 5.

CVSS v2 metrics

Base Score: 5.0
Base Metrics: AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector: Network
Access Complexity: Low
Authentication: None
Confidentiality Impact: None
Integrity Impact: None
Availability Impact: Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date
RHEV Hypervisor for RHEL-6 (rhev-hypervisor6) RHSA-2013:0579 February 28, 2013
Red Hat Enterprise Linux version 6 (dnsmasq) RHSA-2013:0277 February 20, 2013
Red Hat Enterprise Linux version 6 (libvirt) RHSA-2013:0276 February 20, 2013

External References

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact the Red Hat Security Response Team.