BIND 9.3.0 vulnerable to denial of service in validator code

Overview

A vulnerability in the BIND name server could allow a remote attacker to cause a denial of service against an affected system.

Description

The Berkeley Internet Name Domain (BIND) is a popular Domain Name System (DNS) implementation from Internet Systems Consortium (ISC). BIND supports the DNS Security Extensions (DNSSEC), including the NextSECure (NSEC) RDATA Format defined by RFC3845. An incorrect assumption in the validator function authvalidated()can result in an internal consistancy test failing and named exiting. An attacker with the ability to craft specific DNS packets could exploit this vulnerability to cause a denial of service. This vulnerability only affects BIND version 9.3.0.

---

Impact

A remote attacker may be able to cause the name server daemon to exit prematurely, thereby causing a denial of service for DNS operations.

---

Solution

Apply a patch from the vendor

Patches have been released in response to this issue. Please see the Systems Affected section of this document.

Upgrade

Users who compile their own versions of BIND from the original ISC source code are encouraged to upgrade to BIND version 9.3.1, which includes a patch for this issue.

---

Workarounds

ISC recommends that users that are unable to apply the patch ensure that dnssec validation is turned off (it is off by default) at the options/view level. The relevant BIND configuration directive is:

dnssec-enable no;

---

Vendor Information

938617

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FreeBSD __ Affected

Notified: January 17, 2005 Updated: June 21, 2005

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The FreeBSD security team has released FreeBSD Security Advisory FreeBSD-SA-05:12.bind9 in response to this issue. Users are encouraged to review this advisory and apply the patches it refers to.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

ISC __ Affected

Updated: January 25, 2005

Status

Affected

Vendor Statement

Workaround:

Turn off dnssec validation (off by default) at
the options/view level.

dnssec-enable no;
Fix:

Upgrade to BIND 9.3.1
<http://www.isc.org/sw/bind/>

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

MandrakeSoft __ Affected

Notified: January 17, 2005 Updated: January 31, 2005

Status

Affected

Vendor Statement

Mandrakesoft has fixed VU#938617 in advisory MDKSA-2005:023. We do not ship any products with BIND 8 so are not vulnerable to VU#327633.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

Mandrakesoft has published Mandrakelinux Security Update Advisory MDKSA-2005:023 in response to this issue. Users are encouraged to review this advisory and apply the patches it refers to.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Trustix Secure Linux __ Affected

Updated: February 16, 2005

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The Trustix development team has published Trustix Secure Linux Security Advisory #2005-0003 in response to this issue. Users are encouraged to review this advisory and apply the patches it refers to.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Apple Computer Inc. __ Not Affected

Notified: January 17, 2005 Updated: March 18, 2005

Status

Not Affected

Vendor Statement

Mac OS X 10.2, Mac OS X Server 10.2, and later do not contain this issue as the DNS packages distributed are not susceptible to the vulnerability described in this advisory.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Check Point __ Not Affected

Notified: January 17, 2005 Updated: January 24, 2005

Status

Not Affected

Vendor Statement

Check Point products are not vulnerable to these issues.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Debian __ Not Affected

Notified: January 17, 2005 Updated: January 25, 2005

Status

Not Affected

Vendor Statement

It seems that Debian stable is not vulnerable to either vulnerability and Debian testing/unstable is only vulnerable to CAN-2005-033 (VU#327633). The versions included are too old and the vulnerability does not seem to be present in the older versions indeed.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Hitachi __ Not Affected

Notified: January 17, 2005 Updated: January 20, 2005

Status

Not Affected

Vendor Statement

NOT VULNERABLE Hitachi HI-UX/WE2 is NOT Vulnerable to this issue.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

IBM __ Not Affected

Notified: January 17, 2005 Updated: January 24, 2005

Status

Not Affected

Vendor Statement

The AIX Operating System is not vulnerable to the issues discussed in CERT Vulnerability Notes VU#938617, VU#327633 or any Technical Cyber Security Alerts related to these issues.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

InfoBlox __ Not Affected

Notified: February 04, 2005 Updated: March 18, 2005

Status

Not Affected

Vendor Statement

VU #938617: BIND 9.3.0 vulnerable to denial of service in validator code

The Infoblox DNS One product is not vulnerable.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Juniper Networks __ Not Affected

Notified: January 17, 2005 Updated: January 24, 2005

Status

Not Affected

Vendor Statement

Juniper Networks products are not susceptible to this vulnerability

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

NEC Corporation __ Not Affected

Notified: January 17, 2005 Updated: March 18, 2005

Status

Not Affected

Vendor Statement

* NEC products are NOT susceptible to this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Red Hat Inc. __ Not Affected

Notified: January 17, 2005 Updated: January 18, 2005

Status

Not Affected

Vendor Statement

Red Hat Enterprise Linux ships with a BIND package, however we have verified that the versions included in Red Hat Enterprise Linux are not vulnerable to these issues.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Sun Microsystems Inc. __ Not Affected

Notified: January 17, 2005 Updated: January 24, 2005

Status

Not Affected

Vendor Statement

Sun is not affected by either of these vulnerabilities. No version of
Solaris ships with any of the affected versions of BIND and the Sun Java
Desktop System (Linux) doesn't ship an affected version of BIND either.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Adns __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

BlueCat Networks __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Conectiva __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Cray Inc. __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

EMC Corporation __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Engarde __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

F5 Networks __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Fujitsu __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

GNU glibc __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Hewlett-Packard Company __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

IBM eServer __ Unknown

Notified: January 17, 2005 Updated: February 01, 2005

Status

Unknown

Vendor Statement

`For information related to this and other published CERT
Advisories that may relate to the IBM eServer Platforms (xSeries,
iSeries, pSeries, and zSeries) please go to
[https://app-06.www.ibm.com/servers/resourcelink/lib03020.nsf/pages/securityalerts?OpenDocument&pathID=](<https://app-06.www.ibm.com/servers/resourcelink/lib03020.nsf/pages/securityalerts?OpenDocument&pathID=>)

In order to access this information you will require a Resource Link ID.
To subscribe to Resource Link go to
<http://app-06.www.ibm.com/servers/resourcelink>
and follow the steps for registration.

All questions should be refferred to [email protected].`

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

IBM-zSeries __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Immunix __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Ingrian Networks __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Lucent Technologies __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Men&Mice __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

MetaSolv Software Inc. __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Microsoft Corporation __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

MontaVista Software __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

NetBSD __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Nokia __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Nortel Networks __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Novell __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

OpenBSD __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Openwall GNU/*/Linux __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

SCO-LINUX __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

SCO-UNIX __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

SGI __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Sequent __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Sony Corporation __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

SuSE Inc. __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

TurboLinux __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Unisys __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

Wind River Systems Inc. __ Unknown

Notified: January 17, 2005 Updated: January 17, 2005

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

US-CERT has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23938617 Feedback>).

View all 48 vendors __View less vendors __

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://www.isc.org/sw/bind/bind-security.php&gt;
• <http://www.niscc.gov.uk/niscc/docs/al-20050125-00060.html?lang=en&gt;

Acknowledgements

Thanks to Joao Damas of the Internet Systems Consortium for reporting this vulnerability.

This document was written by Chad Dougherty based on information provided by ISC.

Other Information

CVE IDs:	CVE-2005-0034
Severity Metric:	1.91 Date Public: