CVE-2009-3767

OpenLDAP < 2.4.18 - Improper Certificate Validation via Null Byte in CN Field

Title source: llm
STIX 2.1

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.

References (16)

Core 16
Core References
Third Party Advisory vendor-advisory x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2010-March/036138.html
Third Party Advisory mailing-list x_refsource_mlist
http://marc.info/?l=oss-security&m=125369675820512&w=2
Third Party Advisory vendor-advisory x_refsource_gentoo
http://security.gentoo.org/glsa/glsa-201406-36.xml
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2010/1858
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/40677
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2009/3056
Third Party Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2010-0543.html
Third Party Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2011-0896.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.html
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/38769
Mailing List, Third Party Advisory vendor-advisory x_refsource_apple
http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
Broken Link x_refsource_confirm
http://support.apple.com/kb/HT3937
Third Party Advisory mailing-list x_refsource_mlist
http://marc.info/?l=oss-security&m=125198917018936&w=2

Scores

EPSS 0.0309
EPSS Percentile 86.0%

Details

CWE
CWE-295
Status published
Products (3)
apple/mac_os_x < 10.6.2
fedoraproject/fedora 11
openldap/openldap < 2.4.18
Published Oct 23, 2009
Tracked Since Feb 18, 2026