Debian DSA-2130-1 : bind9 - several vulnerabilities

Medium Nessus Plugin ID 51127

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VPR Score: 5.2

Synopsis

The remote Debian host is missing a security-related update.

Description

Several remote vulnerabilities have been discovered in BIND, an implementation of the DNS protocol suite. The Common Vulnerabilities and Exposures project identifies the following problems :

- CVE-2010-3762 When DNSSEC validation is enabled, BIND does not properly handle certain bad signatures if multiple trust anchors exist for a single zone, which allows remote attackers to cause a denial of service (server crash) via a DNS query.

- CVE-2010-3614 BIND does not properly determine the security status of an NS RRset during a DNSKEY algorithm rollover, which may lead to zone unavailability during rollovers.

- CVE-2010-3613 BIND does not properly handle the combination of signed negative responses and corresponding RRSIG records in the cache, which allows remote attackers to cause a denial of service (server crash) via a query for cached data.

In addition, this security update improves compatibility with previously installed versions of the bind9 package. As a result, it is necessary to initiate the update with 'apt-get dist-upgrade' instead of 'apt-get update'.

Solution

Upgrade the bind9 packages.

For the stable distribution (lenny), these problems have been fixed in version 1:9.6.ESV.R3+dfsg-0+lenny1.

For the upcoming stable distribution (squeeze) and the unstable distribution (sid), these problems have been fixed in version 1:9.7.2.dfsg.P3-1.

See Also

https://security-tracker.debian.org/tracker/CVE-2010-3762

https://security-tracker.debian.org/tracker/CVE-2010-3614

https://security-tracker.debian.org/tracker/CVE-2010-3613

https://www.debian.org/security/2010/dsa-2130

Plugin Details

Severity: Medium

ID: 51127

File Name: debian_DSA-2130.nasl

Version: 1.15

Type: local

Agent: unix

Published: 2010/12/12

Updated: 2019/08/02

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 5.2

CVSS v2.0

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:bind9, cpe:/o:debian:debian_linux:5.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2010/12/10

Reference Information

CVE: CVE-2010-3613, CVE-2010-3614, CVE-2010-3762

BID: 45133, 45137

DSA: 2130