Improper Certificate Validation Affecting compat-openldap package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.38% (73rd percentile)

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  • Snyk IDSNYK-RHEL6-COMPATOPENLDAP-1326170
  • published26 Jul 2021
  • disclosed10 Aug 2009

Introduced: 10 Aug 2009

CVE-2009-3767  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:6 compat-openldap.

NVD Description

Note: Versions mentioned in the description apply only to the upstream compat-openldap package and not the compat-openldap package as distributed by RHEL. See How to fix? for RHEL:6 relevant fixed versions and status.

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.

CVSS Scores

version 3.1