VULNERABILITY INTELLIGENCE
CVE-2009-3767
CVSS score4.3 MEDIUM
EPSS probability3.26%
CISA KEVNot currently listed
Published2009-10-23
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:N/I:P/A:N
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.
Weakness classification
- CWE-295: Improper Certificate Validation
Primary references
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Broken Link
- cve@mitre.org — Patch, Vendor Advisory
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Third Party Advisory