{"id":"CVE-2020-36658","aliases":["DEBIAN-CVE-2020-36658","DLA-3284-1","EUVD-2020-24104","GHSA-qf7m-fmfh-9c8v","UBUNTU-CVE-2020-36658","USN-6596-1"],"status":"published","title":"In Apache::Session::LDAP before 0.5, validity of the X.509 certificate is not checked by default...","description":"In Apache::Session::LDAP before 0.5, validity of the X.509 certificate is not checked by default when connecting to remote LDAP backends, because the default configuration of the Net::LDAPS module for Perl is used. NOTE: this can, for example, be fixed in conjunction with the CVE-2020-16093 fix.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00462,"percentile":0.4027,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2023-01-27T00:00:00Z","modified":"2026-10-26T12:01:53Z","fixes":[{"ecosystem":"Debian:12","package":"libapache-session-ldap-perl","fixed_in":["0.5-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libapache-session-ldap-perl","fixed_in":["0.5-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libapache-session-ldap-perl","fixed_in":["0.5-1"],"sources":["osv"]},{"ecosystem":"Debian:10","package":"libapache-session-ldap-perl","fixed_in":["0.4-1+deb10u1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:16.04:LTS","package":"libapache-session-ldap-perl","fixed_in":["0.4-1ubuntu0.16.04.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:18.04:LTS","package":"libapache-session-ldap-perl","fixed_in":["0.4-1ubuntu0.18.04.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"libapache-session-ldap-perl","fixed_in":["0.4-1+deb10u1build0.20.04.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libapache-session-ldap-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"libapache-session-ldap-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"libapache-session-ldap-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5-1"}]}]},{"source":"osv","ecosystem":"Debian:10","package":"libapache-session-ldap-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4-1+deb10u1"}]}],"versions":["0.4-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"libapache-session-ldap-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4-1ubuntu0.16.04.1~esm1"}]}],"versions":["0.4-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"libapache-session-ldap-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4-1ubuntu0.18.04.1~esm1"}]}],"versions":["0.4-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libapache-session-ldap-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4-1+deb10u1build0.20.04.1"}]}],"versions":["0.4-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"libapache-session-ldap-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4-1ubuntu0.16.04.1~esm1"}]}],"versions":["0.4-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"libapache-session-ldap-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4-1ubuntu0.18.04.1~esm1"}]}],"versions":["0.4-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libapache-session-ldap-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4-1+deb10u1build0.20.04.1"}]}],"versions":["0.4-1"]}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"lemonldap-ng","product":"apache\\"}],"references":[{"url":"https://github.com/LemonLDAPNG/Apache-Session-LDAP/commit/490722b71eed1ed1ab33d58c78578f23e043561f","tags":["x_transferred","Patch","Third Party Advisory","fix","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/01/msg00024.html","tags":["mailing-list","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36658"},{"url":"https://github.com/advisories/GHSA-qf7m-fmfh-9c8v"},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-36658","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-36658","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-6596-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-36658","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-36658","description":"In Apache::Session::LDAP before 0.5, validity of the X.509 certificate is not checked by default when connecting to remote LDAP backends, because the default configuration of the Net::LDAPS module for Perl is used. NOTE: this can, for example, be fixed in conjunction with the CVE-2020-16093 fix.","status":"published","published":"2023-01-27T00:00:00Z","modified":"2025-03-28T17:37:05.065Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:35:54.80237Z"}],"euvd":[{"id":"EUVD-2020-24104","description":"In Apache::Session::LDAP before 0.5, validity of the X.509 certificate is not checked by default when connecting to remote LDAP backends, because the default configuration of the Net::LDAPS module for Perl is used. NOTE: this can, for example, be fixed in conjunction with the CVE-2020-16093 fix.","status":"published","published":"2023-01-27T00:00:00Z","modified":"2025-03-28T17:37:05Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T20:52:47.656339Z"}],"ghsa":[{"id":"GHSA-qf7m-fmfh-9c8v","title":"In Apache::Session::LDAP before 0.5, validity of the X.509 certificate is not checked by default...","description":"In Apache::Session::LDAP before 0.5, validity of the X.509 certificate is not checked by default when connecting to remote LDAP backends, because the default configuration of the Net::LDAPS module for Perl is used. NOTE: this can, for example, be fixed in conjunction with the CVE-2020-16093 fix.","status":"published","published":"2023-01-27T06:30:21Z","modified":"2023-02-14T05:06:23Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:54:07.544087Z"}],"nvd":[{"id":"CVE-2020-36658","description":"In Apache::Session::LDAP before 0.5, validity of the X.509 certificate is not checked by default when connecting to remote LDAP backends, because the default configuration of the Net::LDAPS module for Perl is used. NOTE: this can, for example, be fixed in conjunction with the CVE-2020-16093 fix.","status":"published","published":"2023-01-27T05:15:12.973Z","modified":"2026-06-17T03:15:55.1Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:06:47.286386Z"}],"osv":[{"id":"CVE-2020-36658","description":"In Apache::Session::LDAP before 0.5, validity of the X.509 certificate is not checked by default when connecting to remote LDAP backends, because the default configuration of the Net::LDAPS module for Perl is used. NOTE: this can, for example, be fixed in conjunction with the CVE-2020-16093 fix.","status":"published","published":"2023-01-27T05:15:12.973Z","modified":"2026-10-20T10:54:21.733234545Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:16.936975Z"},{"id":"DEBIAN-CVE-2020-36658","description":"In Apache::Session::LDAP before 0.5, validity of the X.509 certificate is not checked by default when connecting to remote LDAP backends, because the default configuration of the Net::LDAPS module for Perl is used. NOTE: this can, for example, be fixed in conjunction with the CVE-2020-16093 fix.","status":"published","published":"2023-01-27T05:15:12.973Z","modified":"2026-10-26T12:01:53.161357169Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:34.019707Z"},{"id":"UBUNTU-CVE-2020-36658","description":"In Apache::Session::LDAP before 0.5, validity of the X.509 certificate is not checked by default when connecting to remote LDAP backends, because the default configuration of the Net::LDAPS module for Perl is used. NOTE: this can, for example, be fixed in conjunction with the CVE-2020-16093 fix.","status":"published","published":"2023-01-27T05:15:00Z","modified":"2026-02-04T03:52:55.724207Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:25.179924Z"},{"id":"DLA-3284-1","title":"libapache-session-ldap-perl - security update","status":"published","published":"2023-01-28T00:00:00Z","modified":"2026-03-09T01:18:29.553532Z","updated_at":"2026-11-02T15:46:11.734021Z"},{"id":"USN-6596-1","title":"libapache-session-ldap-perl vulnerability","description":"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","status":"published","published":"2024-01-24T11:12:41Z","modified":"2026-06-25T13:32:25.666051112Z","updated_at":"2026-11-02T16:58:17.305935Z"}]}}