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Debian DSA-2243-1 : unbound - design flaw

medium Nessus Plugin ID 55031

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Synopsis

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

Description

It was discovered that Unbound, a caching DNS resolver, ceases to provide answers for zones signed using DNSSEC after it has processed a crafted query. (CVE-2009-4008 )

In addition, this update improves the level of DNSSEC support in the lenny version of Unbound so that it is possible for system administrators to configure the trust anchor for the root zone.

Solution

Upgrade the unbound packages.

For the oldstable distribution (lenny), this problem has been fixed in version 1.4.6-1~lenny1.

For the other distributions (squeeze, wheezy, sid), this problem has been fixed in version 1.4.4-1.

See Also

https://security-tracker.debian.org/tracker/CVE-2009-4008

https://www.debian.org/security/2011/dsa-2243

Plugin Details

Severity: Medium

ID: 55031

File Name: debian_DSA-2243.nasl

Version: 1.9

Type: local

Agent: unix

Published: 6/10/2011

Updated: 1/4/2021

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.4

CVSS v2

Risk Factor: Medium

Base Score: 5

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

Vulnerability Information

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

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

Patch Publication Date: 5/27/2011

Reference Information

CVE: CVE-2009-4008

DSA: 2243