{"id":"USN-6596-1","summary":"libapache-session-ldap-perl vulnerability","details":"It was discovered that Apache::Session::LDAP incorrectly handled invalid X.509\ncertificates. If a user or an automated system were tricked into opening a\nspecially crafted invalid X.509 certificate, a remote attacker could possibly\nuse this issue to perform spoofing and obtain sensitive information.\n","modified":"2026-06-25T13:32:25.666051112Z","published":"2024-01-24T11:12:41Z","related":["UBUNTU-CVE-2020-36658"],"upstream":["CVE-2020-36658","UBUNTU-CVE-2020-36658"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6596-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-36658"}],"affected":[{"package":{"name":"libapache-session-ldap-perl","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/libapache-session-ldap-perl?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4-1ubuntu0.16.04.1~esm1"}]}],"versions":["0.4-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libapache-session-ldap-perl","binary_version":"0.4-1ubuntu0.16.04.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"id":"CVE-2020-36658","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6596-1.json"}},{"package":{"name":"libapache-session-ldap-perl","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libapache-session-ldap-perl?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4-1ubuntu0.18.04.1~esm1"}]}],"versions":["0.4-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libapache-session-ldap-perl","binary_version":"0.4-1ubuntu0.18.04.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"id":"CVE-2020-36658","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6596-1.json"}},{"package":{"name":"libapache-session-ldap-perl","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libapache-session-ldap-perl?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4-1+deb10u1build0.20.04.1"}]}],"versions":["0.4-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.4-1+deb10u1build0.20.04.1","binary_name":"libapache-session-ldap-perl"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2020-36658","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6596-1.json"}}],"schema_version":"1.7.5"}