{"id":"DEBIAN-CVE-2013-4434","details":"Dropbear SSH Server before 2013.59 generates error messages for a failed logon attempt with different time delays depending on whether the user account exists, which allows remote attackers to discover valid usernames.","modified":"2026-09-01T20:03:18.290869710Z","published":"2013-10-25T23:55:03.957Z","upstream":["CVE-2013-4434"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2013-4434"}],"affected":[{"package":{"name":"dropbear","ecosystem":"Debian:12","purl":"pkg:deb/debian/dropbear?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2012.55-1.4"}]}],"ecosystem_specific":{"urgency":"low"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2013-4434.json"}},{"package":{"name":"dropbear","ecosystem":"Debian:13","purl":"pkg:deb/debian/dropbear?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2012.55-1.4"}]}],"ecosystem_specific":{"urgency":"low"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2013-4434.json"}},{"package":{"name":"dropbear","ecosystem":"Debian:14","purl":"pkg:deb/debian/dropbear?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2012.55-1.4"}]}],"ecosystem_specific":{"urgency":"low"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2013-4434.json"}}],"schema_version":"1.9.0"}