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.
{ "nvd_published_at": "2013-09-30T21:55:00Z", "cwe_ids": [ "CWE-20" ], "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2024-02-23T20:57:09Z" }