Public Date:
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 dictionary and NIST NVD.


Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle:

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 5
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 2013-02-28
Red Hat Enterprise Linux version 6 (dnsmasq) RHSA-2013:0277 2013-02-20
Red Hat Enterprise Linux version 6 (libvirt) RHSA-2013:0276 2013-02-20

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 dnsmasq Will not fix