GLSA-201209-04 : BIND: Multiple vulnerabilities

This script is Copyright (C) 2012-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-201209-04
(BIND: Multiple vulnerabilities)

Multiple vulnerabilities have been discovered in BIND:
Domain names are not properly revoked due to an error in the cache
update policy (CVE-2012-1033).
BIND accepts records with zero-length RDATA fields (CVE-2012-1667).
An assertion failure from the failing-query cache could occur when
DNSSEC validation is enabled (CVE-2012-3817).
A memory leak may occur under high TCP query loads (CVE-2012-3868).
An assertion error can occur when a query is performed for a record
with RDATA greater than 65535 bytes (CVE-2012-4244).

Impact :

A remote attacker may be able to cause a Denial of Service condition or
keep domain names resolvable after it has been deleted from registration.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-201209-04.xml

Solution :

All BIND users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-dns/bind-9.9.1_p3'

Risk factor :

High / CVSS Base Score : 8.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:C)
CVSS Temporal Score : 7.4
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: Gentoo Local Security Checks

Nessus Plugin ID: 62237 ()

Bugtraq ID: 51898
53772
54658
54659
55522

CVE ID: CVE-2012-1033
CVE-2012-1667
CVE-2012-3817
CVE-2012-3868
CVE-2012-4244