Debian DSA-1943-1 : openldap openldap2.3 - insufficient input validation

medium Nessus Plugin ID 44808

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Synopsis

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

Description

It was discovered that OpenLDAP, a free implementation of the Lightweight Directory Access Protocol, when OpenSSL is used, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.

Solution

Upgrade the openldap2.3/openldap packages.

For the oldstable distribution (etch), this problem has been fixed in version 2.3.30-5+etch3 for openldap2.3.

For the stable distribution (lenny), this problem has been fixed in version 2.4.11-1+lenny1 for openldap.

Plugin Details

Severity: Medium

ID: 44808

File Name: debian_DSA-1943.nasl

Version: 1.15

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 2/24/2010

Updated: 1/4/2021

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.8

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:5.0, p-cpe:/a:debian:debian_linux:openldap, cpe:/o:debian:debian_linux:4.0, p-cpe:/a:debian:debian_linux:openldap2.3

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

Patch Publication Date: 12/2/2009

Reference Information

CVE: CVE-2009-3767

CWE: 310

DSA: 1943

Detections

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