Executive Summary

Summary
Title MaraDNS: CNAME Denial of Service
Informations
Name GLSA-200801-16 First vendor Publication 2008-01-29
Vendor Gentoo Last vendor Modification 2008-01-29
Severity (Vendor) Normal Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

MaraDNS is prone to a Denial of Service vulnerability impacting CNAME resolution.

Background

MaraDNS is a package that implements the Domain Name Service (DNS) with resolver and caching ability.

Description

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.

Resolution

All MaraDNS users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/maradns-1.2.12.09"

References

[ 1 ] CVE-2008-0061 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0061

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200801-16.xml

Original Source

Url : http://security.gentoo.org/glsa/glsa-200801-16.xml

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:18762
 
Oval ID: oval:org.mitre.oval:def:18762
Title: DSA-1445-1 maradns denial of service
Description: Michael Krieger and Sam Trenholme discovered a programming error in MaraDNS, a simple security-aware Domain Name Service server, which might lead to denial of service through malformed DNS packets.
Family: unix Class: patch
Reference(s): DSA-1445-1
CVE-2008-0061
 Version: 7
Platform(s): Debian GNU/Linux 4.0
 Product(s): maradns
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:8336
 
Oval ID: oval:org.mitre.oval:def:8336
Title: DSA-1445 maradns -- programming error
Description: Michael Krieger and Sam Trenholme discovered a programming error in MaraDNS, a simple security-aware Domain Name Service server, which might lead to denial of service through malformed DNS packets. For the old stable distribution (sarge), this problem has been fixed in version 1.0.27-2. For the stable distribution (etch), this problem has been fixed in version 1.2.12.04-1etch2. For the unstable distribution (sid), this problem has been fixed in version 1.2.12.08-1. We recommend that you upgrade your maradns package.
Family: unix Class: patch
Reference(s): DSA-1445
CVE-2008-0061
 Version: 3
Platform(s): Debian GNU/Linux 4.0
Debian GNU/Linux 3.1
 Product(s): maradns
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 57

OpenVAS Exploits

Date Description
2008-09-24 Name : Gentoo Security Advisory GLSA 200801-16 (maradns)
File : nvt/glsa_200801_16.nasl
2008-09-04 Name : FreeBSD Ports: maradns
File : nvt/freebsd_maradns.nasl
2008-01-17 Name : Debian Security Advisory DSA 1445-1 (maradns)
File : nvt/deb_1445_1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
39842 MaraDNS CNAME Record Resource Rotation DoS

MaraDNS contains a flaw that may allow a remote denial of service. The issue is triggered due to handling of certain DNS packets that will cause a resource rotation, and will result in loss of availability as an authoritative CNAME record will not resolve.

Nessus® Vulnerability Scanner

Date Description
2014-04-11 Name : The DNS server running on the remote host is affected by a denial of service ...
File : maradns_1_3_07_04.nasl - Type : ACT_GATHER_INFO
2008-01-30 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200801-16.nasl - Type : ACT_GATHER_INFO
2008-01-14 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_f358de71bf6411dc928b0016179b2dd5.nasl - Type : ACT_GATHER_INFO
2008-01-04 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1445.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:35:30
  • Multiple Updates