CVEvulnerability

CVE-2009-3767

4.3 MEDIUM Published 2009-10-23 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2009-10-23
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:N
Weaknesses
CWE-295

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 '\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, a related issue to CVE-2009-2408.

Affected configurations

• openldap openldap (< 2.4.18) • apple mac os x (< 10.6.2) • fedoraproject fedora 11

Related

Weakness · CWE (1)

  • CWE-295 Improper Certificate Validation weakness

Referenced by CWE · observed example (1)

  • CWE-297 Improper Validation of Certificate with Host Mismatch weakness

References