Vulnerability Note VU#955777

Multiple vulnerabilities in DNS implementations

Original Release date: 28 Apr 2006 | Last revised: 23 May 2006

Overview

Numerous vulnerabilities have been reported in various Domain Name System (DNS) implementations. The impacts of these vulnerabilities may allow an attacker to execute arbitrary code, cause a denial-of-service condition, or cause a DNS implementation to behave in an unstable/unpredictable manner.

Description

DNS

The Domain Name System provides name, address, and other information about Internet Protocol (IP) networks and devices.

The Problems

The U.K. National Infrastructure Security Co-ordination Center (NISCC) and the Oulu University Secure Programming Group have reported numerous vulnerabilities in DNS implementations.

These vulnerabilities were discovered using the PROTOS DNS Test Tool developed by Oulu University Secure Programming Group (OUSPG). The results of the tests are described in NISCC Vulnerability Advisory 144154/NISCC/DNS. According to that advisory:

    There are three sets of test materials available with the tool; these are specifically designed for the following scenarios:

    1. The Query Material -> [queries, dynamic DNS updates] -> DNS server
    2. The Response Material -> [query replies] -> DNS server
    3. The Response Material -> [query replies] -> DNS stub resolver (client)
    4. The Zone Transfer Material -> [zone transfers] -> secondary DNS server


    The test material simulates hostile input to the DNS implementation by sending invalid
    and/or abnormal packets.

Impact

These vulnerabilities may allow a remote attacker to execute arbitrary code, cause a denial-of-service condition, gain access to sensitive information, or cause an DNS implementation to behave in an unstable/unpredictable manner.

Exploitation of some of these vulnerabilities may allow a remote attacker to take control of a DNS server. Once a DNS server compromised, the attacker may be able to launch attacks on other, unaffected DNS servers.

Solution

Apply a patch from an affected product vendor

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
F5 Networks, Inc.Affected26 Apr 200603 May 2006
Juniper Networks, Inc.Affected26 Apr 200627 Apr 2006
Openwall GNU/*/LinuxAffected26 Apr 200610 May 2006
Hewlett-Packard CompanyNot Affected26 Apr 200610 May 2006
HitachiNot Affected26 Apr 200601 May 2006
Ricoh CorporationNot Affected-23 May 2006
Apple Computer, Inc.Unknown26 Apr 200626 Apr 2006
Conectiva Inc.Unknown26 Apr 200626 Apr 2006
Cray Inc.Unknown26 Apr 200626 Apr 2006
Debian GNU/LinuxUnknown26 Apr 200626 Apr 2006
EMC, Inc. (formerly Data General Corporation)Unknown26 Apr 200626 Apr 2006
Engarde Secure LinuxUnknown26 Apr 200626 Apr 2006
Fedora ProjectUnknown26 Apr 200626 Apr 2006
FreeBSD, Inc.Unknown26 Apr 200626 Apr 2006
FujitsuUnknown26 Apr 200626 Apr 2006
If you are a vendor and your product is affected, let us know.View More »

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A

References

Credit

These vulnerabilities were reported by NISCC and Oulu University Secure Programming Group (OUSPG)

This document was written by Jeff Gennari.

Other Information

  • CVE IDs: Unknown
  • Date Public: 25 Apr 2006
  • Date First Published: 28 Apr 2006
  • Date Last Updated: 23 May 2006
  • Severity Metric: 19.12
  • Document Revision: 37

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