CVE-2012-3411

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-03-05 · updated 2026-06-16
Weakness: CWE-20

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.

Affected products

RedHat Enterprise Linux Desktop: 6.0
RedHat Enterprise Linux Server: 6.0
RedHat Enterprise Linux Workstation: 6.0
Simon Kelley dnsmasq: through 2.62

References

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

Get alerted when CVE-2012-3411 or the next vulnerability affects your stack