CVE-2009-3767

Severity CVSS v4.0:

Pending analysis

Type:

CWE-295 Improper Certificate Validation

Publication date:

23/10/2009

Last modified:

09/04/2025

Description

libraries/libldap/tls_o.c in OpenLDAP 2.2 and 2.4, and possibly other versions, when OpenSSL is used, does not properly handle a &#39;\0&#39; character in a domain name in the subject&#39;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, a related issue to CVE-2009-2408.

Impact

Vector 2.0

AV:N/AC:M/Au:N/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0

4.30

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:openldap:openldap::::::::		2.4.18 (excluding)
cpe:2.3:a:openssl:openssl::::::::
cpe:2.3:o:apple:mac_os_x::::::::		10.6.2 (excluding)
cpe:2.3:o:fedoraproject:fedora:11:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2009-3767

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools