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CVE-2012-3411

21
FAUCET Score

CVE-2012-3411 describes a denial-of-service vulnerability in Dnsmasq versions prior to 2.63test1, particularly when integrated with specific libvirt configurations. This flaw allows remote attackers to trigger traffic amplification by sending spoofed DNS queries, as Dnsmasq improperly responds to requests from prohibited interfaces. The vulnerability carries a CVSS score of 5.0 (medium severity) with a low attack complexity and no authentication required, leading to a potential impact of denial of service. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.62CPE matchmatch criteria
cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.03%
Probability of exploitation in next 30 days
EPSS Percentile
91.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0503 is in the 88th percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libvirt-0:0.10.2-18.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: dnsmasq-0:2.48-13.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Storage 3 for RHEL 6Fixed in: libvirt-0:0.10.2-18.el6
View patch
redhatpatch availablevia redhat_api
Product: RHEV 3.X Hypervisor and Agents for RHEL-6Fixed in: rhev-hypervisor6-0:6.4-20130221.0.el6
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: dnsmasq

Vendor Advisories (1)

redhatCVE-2012-3411Moderate

libvirt+dnsmasq: DNS configured to answer DNS queries from non-virtual networks

Jul 9, 2012

References

bugs.debian.org / cgi-bin/bugreport.cgi
Issue TrackingThird Party Advisory
rhn.redhat.com / errata/RHSA-2013-0276.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2013-0277.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2013-0579.html
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
thekelleys.org.uk / gitweb
thekelleys.org.uk / gitweb
mandriva.com / security/advisories
Third Party Advisory
openwall.com / lists/oss-security/2012/07/12/5
Mailing ListThird Party Advisory
securityfocus.com / bid/54353
Third Party AdvisoryVDB Entry
thekelleys.org.uk / dnsmasq/CHANGELOG
Release NotesVendor Advisory