The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a '\0' character in a domain name in the Subject Alternative Name 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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T16:38:01.984Z

Reserved: 2013-06-12T00:00:00

Link: CVE-2013-4314

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2013-09-30T21:55:09.583

Modified: 2025-04-11T00:51:21.963

Link: CVE-2013-4314

cve-icon Redhat

Severity : Moderate

Publid Date: 2013-09-04T00:00:00Z

Links: CVE-2013-4314 - Bugzilla