{"id":"CVE-2013-6422","details":"The GnuTLS backend in libcurl 7.21.4 through 7.33.0, when disabling digital signature verification (CURLOPT_SSL_VERIFYPEER), also disables the CURLOPT_SSL_VERIFYHOST check for CN or SAN host name fields, which makes it easier for remote attackers to spoof servers and conduct man-in-the-middle (MITM) attacks.","aliases":["CURL-CVE-2013-6422"],"modified":"2025-08-09T19:01:27Z","published":"2013-12-23T22:55:02Z","references":[{"type":"ADVISORY","url":"http://curl.haxx.se/docs/adv_20131217.html"},{"type":"ADVISORY","url":"http://www.debian.org/security/2013/dsa-2824"},{"type":"ADVISORY","url":"http://www.ubuntu.com/usn/USN-2058-1"},{"type":"WEB","url":"http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html"},{"type":"WEB","url":"https://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c04463322"}],"schema_version":"1.7.3"}