GLSA-200801-16 : MaraDNS: CNAME Denial of Service

Medium Nessus Plugin ID 30128


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


The remote host is affected by the vulnerability described in GLSA-200801-16 (MaraDNS: CNAME Denial of Service)

Michael Krieger reported that a specially crafted DNS could prevent an authoritative canonical name (CNAME) record from being resolved because of an 'improper rotation of resource records'.
Impact :

A remote attacker could send specially crafted DNS packets to a vulnerable server, making it unable to resolve CNAME records.
Workaround :

Add 'max_ar_chain = 2' to the 'marac' configuration file.


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

See Also

Plugin Details

Severity: Medium

ID: 30128

File Name: gentoo_GLSA-200801-16.nasl

Version: $Revision: 1.11 $

Type: local

Published: 2008/01/30

Modified: 2015/04/13

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:maradns, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 2008/01/29

Reference Information

CVE: CVE-2008-0061

OSVDB: 39842

GLSA: 200801-16