{"id":"DEBIAN-CVE-2023-52892","details":"In phpseclib before 1.0.22, 2.x before 2.0.46, and 3.x before 3.0.33, some characters in Subject Alternative Name fields in TLS certificates are incorrectly allowed to have a special meaning in regular expressions (such as a + wildcard), leading to name confusion in X.509 certificate host verification.","modified":"2026-09-15T09:02:40.387789662Z","published":"2024-06-27T22:15:10.277Z","upstream":["CVE-2023-52892"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-52892"}],"affected":[{"package":{"name":"php-phpseclib","ecosystem":"Debian:12","purl":"pkg:deb/debian/php-phpseclib?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.42-1+deb12u3"}]}],"versions":["2.0.42-1","2.0.42-1+deb12u1","2.0.42-1+deb12u2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52892.json"}},{"package":{"name":"php-phpseclib","ecosystem":"Debian:13","purl":"pkg:deb/debian/php-phpseclib?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.46-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52892.json"}},{"package":{"name":"php-phpseclib","ecosystem":"Debian:14","purl":"pkg:deb/debian/php-phpseclib?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.46-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52892.json"}},{"package":{"name":"php-phpseclib3","ecosystem":"Debian:12","purl":"pkg:deb/debian/php-phpseclib3?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.19-1+deb12u4"}]}],"versions":["3.0.19-1","3.0.19-1+deb12u1","3.0.19-1+deb12u2","3.0.19-1+deb12u3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52892.json"}},{"package":{"name":"php-phpseclib3","ecosystem":"Debian:13","purl":"pkg:deb/debian/php-phpseclib3?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.33-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52892.json"}},{"package":{"name":"php-phpseclib3","ecosystem":"Debian:14","purl":"pkg:deb/debian/php-phpseclib3?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.33-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52892.json"}},{"package":{"name":"phpseclib","ecosystem":"Debian:12","purl":"pkg:deb/debian/phpseclib?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.20-1+deb12u3"}]}],"versions":["1.0.20-1","1.0.20-1+deb12u1","1.0.20-1+deb12u2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52892.json"}},{"package":{"name":"phpseclib","ecosystem":"Debian:13","purl":"pkg:deb/debian/phpseclib?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.22-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52892.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}