GLSA-201202-03 : MaraDNS: 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-201202-03
(MaraDNS: Denial of Service)

MaraDNS does not properly randomize hash functions to protect against
hash collision attacks.

Impact :

A remote attacker could send many specially crafted DNS recursive
queries, possibly resulting in a Denial of Service condition.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-201202-03.xml

Solution :

All MaraDNS users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-dns/maradns-1.4.09'

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: 58099 ()

Bugtraq ID: 51225

CVE ID: CVE-2012-0024