A vulnerability in Dnsmasq can lead to a Denial of Service condition.
|Package||net-dns/dnsmasq on all architectures|
|Affected versions||< 2.72-r2|
|Unaffected versions||>= 2.72-r2|
Dnsmasq is a lightweight, easy to configure DNS forwarder and DHCP server.
An out-of-bounds read vulnerability has been found in the tcp_request function in Dnsmasq.
A remote attacker could send a specially crafted DNS request, possibly resulting in a Denial of Service condition.
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-2.72-r2"
December 17, 2015
December 17, 2015: 1