Gentoo: GLSA-201406-24: Dnsmasq: Denial of Service
Summary
When used with certain libvirt configurations Dnsmasq replies to queries from prohibited interfaces.
Resolution
All Dnsmasq users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.66"
References
[ 1 ] CVE-2012-3411 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3411 [ 2 ] CVE-2013-0198 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-0198
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201406-24
Concerns
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
Synopsis
A vulnerability in Dnsmasq can lead to a Denial of Service condition.
Background
Dnsmasq is a lightweight, easy to configure DNS forwarder and DHCP server.
Affected Packages
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-dns/dnsmasq < 2.66 >= 2.66
Impact
===== A remote attackers can cause a Denial of Service via spoofed TCP based DNS queries.
Workaround
There is no known workaround at this time.