GLSA-201202-04 : PowerDNS: Denial of Service

This script is Copyright (C) 2012-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-201202-04
(PowerDNS: Denial of Service)

A vulnerability has been found in PowerDNS which could cause a packet
loop of DNS responses.

Impact :

A remote attacker could send specially crafted DNS response packets,
possibly resulting in a Denial of Service condition.

Workaround :

PowerDNS users can set 'cache-ttl=0' in /etc/powerdns/pdns.conf and then
restart the PowerDNS daemon:
# /etc/init.d/pdns restart
Please review the PowerDNS Security Advisory below for more workaround
details.

See also :

http://doc.powerdns.com/powerdns-advisory-2012-01.html
http://www.gentoo.org/security/en/glsa/glsa-201202-04.xml

Solution :

All PowerDNS users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-dns/pdns-3.0.1'

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.1
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Gentoo Local Security Checks

Nessus Plugin ID: 58100 ()

Bugtraq ID: 51355

CVE ID: CVE-2012-0206