BIND: Multiple vulnerabilities

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 201206-01 / bind
Release Date	June 02, 2012
Latest Revision	June 02, 2012: 1
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
net-dns/bind	< 9.7.4_p1	>= 9.7.4_p1	All supported architectures

Related bugreports: #347621, #356223, #368863, #374201, #374623, #390753

Synopsis

Multiple vulnerabilities have been found in BIND, the worst of which allowing to cause remote Denial of Service.

2. Impact Information

Background

BIND is the Berkeley Internet Name Domain Server.

Description

Multiple vulnerabilities have been discovered in BIND. Please review the CVE identifiers referenced below for details.

Impact

The vulnerabilities allow remote attackers to cause a Denial of Service (daemon crash) via a DNS query, to bypass intended access restrictions, to incorrectly cache a ncache entry and a rrsig for the same type and to incorrectly mark zone data as insecure.

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-9.7.4_p1"

NOTE: This is a legacy GLSA. Updates for all affected architectures are available since December 22, 2011. It is likely that your system is already no longer affected by this issue.

4. References

Page updated June 02, 2012

Summary: This is a Gentoo Linux Security Advisory

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