A vulnerability in Dnsmasq can lead to a Denial of Service condition.
|Package||net-dns/dnsmasq on all architectures|
|Affected versions||< 2.66|
|Unaffected versions||>= 2.66|
Dnsmasq is a lightweight, easy to configure DNS forwarder and DHCP server.
When used with certain libvirt configurations Dnsmasq replies to queries from prohibited interfaces.
A remote attackers can cause a Denial of Service via spoofed TCP based DNS queries.
There is no known workaround at this time.
All Dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.66"