{"action":"Upgrade pyopenssl to 0.13-2.1 or later.","affected":[{"fixed":"0.13-2.1","introduced":"0"}],"component":"pyopenssl","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["0.13-2.1"],"id":"tcs_01M5NAGE4084D79HM1P8YM80MM","modified_at":"2026-09-01T20:03:18.196330454Z","published_at":"2013-09-30T21:55:09.583Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2013-4314","https://security-tracker.debian.org/tracker/CVE-2013-4314"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2013-4314","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2013-4314"}],"summary":"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 at"}