National Vulnerability Database

National Vulnerability Database

National Vulnerability

CVE-2009-3767 Detail

Current 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.

Source:  MITRE
View Analysis Description


CVSS 3.x Severity and Metrics:

Base Score: N/A
NVD score not yet provided.

Vendor Statements (disclaimer)

Official Statement from OpenLDAP (10/30/2009)

OpenLDAP reported this issue and published a patch for it on 2009-07-30. The patch was included in OpenLDAP 2.4.18 which was released on 2009-09-06. The current release of OpenLDAP is available from the following location:

Official Statement from Red Hat (07/20/2010)

Red Hat is aware of this issue and is tracking it via the following bug: This issue was addressed in the openldap packages as shipped with Red Hat Enterprise Linux 5 and 4 via: and respectively. The Red Hat Security Response Team has rated this issue as having moderate security impact, a future openldap update may address this flaw in Red Hat Enterprise Linux 3.

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Hyperlink Resource

Weakness Enumeration

CWE-ID CWE Name Source
CWE-310 Cryptographic Issues NIST  

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
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Running on/with
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Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
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