Debian DSA-2244-1 : bind9 - incorrect boundary condition

Medium Nessus Plugin ID 55032

Synopsis

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

Description

It was discovered that BIND, an implementation of the DNS protocol, does not correctly process certain large RRSIG record sets in DNSSEC responses. The resulting assertion failure causes the name server process to crash, making name resolution unavailable. (CVE-2011-1910 )

In addition, this update fixes handling of certain signed/unsigned zone combinations when a DLV service is used. Previously, data from certain affected zones could become unavailable from the resolver.

Solution

Upgrade the bind9 packages.

For the oldstable distribution (lenny), this problem has been fixed in version 1:9.6.ESV.R4+dfsg-0+lenny2.

For the stable distribution (squeeze), this problem has been fixed in version 1:9.7.3.dfsg-1~squeeze2.

See Also

https://security-tracker.debian.org/tracker/CVE-2011-1910

https://packages.debian.org/source/squeeze/bind9

https://www.debian.org/security/2011/dsa-2244

Plugin Details

Severity: Medium

ID: 55032

File Name: debian_DSA-2244.nasl

Version: 1.9

Type: local

Agent: unix

Published: 2011/06/10

Updated: 2018/11/28

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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, cpe:/o:debian:debian_linux:6.0

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: 2011/05/27

Reference Information

CVE: CVE-2011-1910

BID: 48007

DSA: 2244