BIND: Multiple vulnerabilities

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 201006-11 / BIND
Release Date	June 01, 2010
Latest Revision	June 01, 2010: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
net-dns/bind	< 9.4.3_p5	>= 9.4.3_p5	All supported architectures

Related bugreports: #301548, #308035

Synopsis

Several cache poisoning vulnerabilities have been found in BIND.

2. Impact Information

Background

ISC BIND is the Internet Systems Consortium implementation of the Domain Name System (DNS) protocol.

Description

Multiple cache poisoning vulnerabilities were discovered in BIND. For further information please consult the CVE entries and the ISC Security Bulletin referenced below.

Note: CVE-2010-0290 and CVE-2010-0382 exist because of an incomplete fix and a regression for CVE-2009-4022.

Impact

An attacker could exploit this weakness to poison the cache of a recursive resolver and thus spoof DNS traffic, which could e.g. lead to the redirection of web or mail traffic to malicious sites.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All BIND users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/bind-9.4.3_p5"

4. References

Page updated June 01, 2010

Summary: This is a Gentoo Linux Security Advisory

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