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 arb…
CVSS 2.0MEDIUM 4.3·Network·No auth·Interaction —·EPSS 0.01197·Published 2013-09-30·Fixed in 0.13.1CWE-20