{"id":"DEBIAN-CVE-2020-12105","details":"OpenConnect through 8.08 mishandles negative return values from X509_check_ function calls, which might assist attackers in performing man-in-the-middle attacks.","modified":"2026-09-01T16:04:55.681450892Z","published":"2020-04-23T17:15:12.863Z","upstream":["CVE-2020-12105"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2020-12105"}],"affected":[{"package":{"name":"openconnect","ecosystem":"Debian:12","purl":"pkg:deb/debian/openconnect?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.01-3","9.12-1","9.12-1.1~exp1","9.12-2","9.12-3","9.12-3.1","9.12-3.2","9.12-3.3","9.21-1","9.21-2","9.21-3","9.21-4","9.21-5"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12105.json"}},{"package":{"name":"openconnect","ecosystem":"Debian:13","purl":"pkg:deb/debian/openconnect?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.12-3","9.12-3+deb13u1","9.12-3+deb13u2","9.12-3.1","9.12-3.2","9.12-3.3","9.21-1","9.21-2","9.21-3","9.21-4","9.21-5"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12105.json"}},{"package":{"name":"openconnect","ecosystem":"Debian:14","purl":"pkg:deb/debian/openconnect?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.12-3","9.12-3.1","9.12-3.2","9.12-3.3","9.21-1","9.21-2","9.21-3","9.21-4","9.21-5"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12105.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}