ISC BIND 8.3.x before 8.3.7, and 8.4.x before 8.4.3, allows remote attackers to poison the cache via a malicious name server that returns negative responses with a large TTL (time-to-live) value.

A programming error in BIND 8 named can result in a DNS message being incorrectly cached as a negative response. As a result, an attacker may arrange for malicious DNS messages to be delivered to a target name server, and cause that name server to cache a negative response for some target domain name. The name server would thereafter respond negatively to legitimate queries for that domain name, resulting in a denial-of-service for applications that require DNS.

A vulnerability was discovered in BIND, a domain name server, whereby a malicious name server could return authoritative negative responses with a large TTL (time-to-live) value, thereby rendering a domain name unreachable. A successful attack would require that a vulnerable BIND instance submit a query to a malicious nameserver. 

The bind9 package is not affected by this vulnerability.

The remote host is missing AIX Critical Security Patch number IY49883 (Anti-cache poison techniques to negative answers).

You should install this patch for your system to be up-to-date.

The remote host is missing AIX Critical Security Patch number IY49881 (Anti-cache poisoning techniques to negative answers).

You should install this patch for your system to be up-to-date.

The remote host is missing the patch for the advisory SuSE-SA:2003:047 (bind8).


To resolve IP addresses to host and domain names and vice versa the DNS service needs to be consulted. The most popular DNS software is the BIND8 and BIND9 suite. The BIND8 code is vulnerable to a remote denial-of-service attack by poisoning the cache with authoritative negative responses that should not be accepted otherwise.
To execute this attack a name-server needs to be under malicious control and the victim's bind8 has to query this name-server.
The attacker can set a high TTL value to keep his negative record as long as possible in the cache of the victim. For this time the clients of the attacked site that rely on the bind8 service will not be able to reach the domain specified in the negative record.
These records should disappear after the time-interval (TTL) elapsed.

There is no temporary workaround for this bug.

To make this update effective run 'rcnamed restart' as root please.

Please download the update package for your distribution and verify its integrity by the methods listed in section 3) of this announcement.
Then, install the package using the command 'rpm -Fhv file.rpm' to apply the update.

The remote BIND server, according to its version number, is vulnerable to a negative cache poison bug that may allow an attacker to disable this service remotely.

ID	Name	Product	Family	Severity
36224	FreeBSD : bind8 negative cache poison attack (f04cc5cb-2d0b-11d8-beaf-000a95c4d922)	Nessus	FreeBSD Local Security Checks	medium
15246	Debian DSA-409-1 : bind - denial of service	Nessus	Debian Local Security Checks	medium
14429	AIX 5.2 : IY49883	Nessus	AIX Local Security Checks	medium
14428	AIX 5.1 : IY49881	Nessus	AIX Local Security Checks	medium
13815	SuSE-SA:2003:047: bind8	Nessus	SuSE Local Security Checks	medium
11932	ISC BIND < 8.3.7 / 8.4.3 Negative Record Cache Poisoning	Nessus	DNS	high

Detections

Analytics

CVE-2003-0914

high

Tenable Plugins

medium

medium

medium

medium

medium

high