{"id":"CVE-2017-12872","aliases":["DEBIAN-CVE-2017-12872","DLA-1205-1","DLA-1408-1","EUVD-2022-5314","GHSA-v882-949x-6v28","UBUNTU-CVE-2017-12872"],"status":"published","title":"SimpleSAMLphp allows timing side-channel attacks","description":"The (1) Htpasswd authentication source in the authcrypt module and (2) SimpleSAML_Session class in SimpleSAMLphp 1.14.11 and earlier allow remote attackers to conduct timing side-channel attacks by leveraging use of the standard comparison operator to compare secret material against user input.","severity":{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01459,"percentile":0.7373,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200"],"published":"2017-09-01T21:00:00Z","modified":"2026-10-24T10:30:41Z","fixes":[{"ecosystem":"Packagist","package":"simplesamlphp/simplesamlphp","fixed_in":["1.15.0-rc1"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:12","package":"simplesamlphp","fixed_in":["1.14.15-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"simplesamlphp","fixed_in":["1.14.15-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"simplesamlphp/simplesamlphp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.0-rc1"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"simplesamlphp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.14.15-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"simplesamlphp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.14.15-1"}]}],"versions":["1.10.0-1","1.11.0-1","1.12.0-1","1.12.0~rc1-1","1.12.0~rc2-1","1.13.0-1","1.13.1-1","1.13.1-2","1.13.2-1","1.14.0-1","1.14.1-1","1.14.10-1","1.14.11-1","1.14.2-1","1.14.2-2","1.14.3-1","1.14.4-1","1.14.5-1","1.14.6-1","1.14.7-1","1.14.8-1","1.14.9-1","1.6.0-1","1.6.1-1","1.6.2-1","1.6.3-1","1.6.3-2","1.6.3-3","1.7.0-1","1.7.0-2","1.8.0-1","1.8.1-1","1.8.2-1","1.9.0-1","1.9.0~rc1-1","1.9.0~rc2-1","1.9.1-1","1.9.2-1"]},{"source":"osv","ecosystem":"Debian:7","package":"simplesamlphp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.2-1+deb7u1"}]}],"versions":["1.9.2-1"],"bundled":6},{"source":"osv","ecosystem":"Debian:8","package":"simplesamlphp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.13.1-2+deb8u2"}]}],"versions":["1.13.1-2","1.13.1-2+deb8u1"],"bundled":2},{"source":"osv","ecosystem":"Packagist","package":"simplesamlphp/simplesamlphp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.0-rc1"}]}],"versions":["v1.12.0","v1.13.0","v1.13.0-rc1","v1.13.0-rc2","v1.13.1","v1.13.2","v1.14.0","v1.14.0-rc1","v1.14.1","v1.14.10","v1.14.11","v1.14.12","v1.14.13","v1.14.14","v1.14.15","v1.14.16","v1.14.17","v1.14.2","v1.14.3","v1.14.4","v1.14.5","v1.14.6","v1.14.7","v1.14.8","v1.14.9"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"simplesamlphp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.13.2-1","1.14.0-1","1.14.0-1ubuntu2","1.14.0-1ubuntu2+esm1"]}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"simplesamlphp","product":"simplesamlphp"}],"references":[{"url":"https://simplesamlphp.org/security/201703-01","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","fix","web","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2017/12/msg00007.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","web"]},{"url":"https://lists.debian.org/debian-lts-announce/2018/06/msg00017.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-12872","tags":["advisory"]},{"url":"https://github.com/simplesamlphp/simplesamlphp/commit/b72c79e3070f930d758f5c269333d63ed7509e2e","tags":["web"]},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/simplesamlphp/CVE-2017-12872.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-v882-949x-6v28"},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-12872","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2017-12872","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-12872","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2017-12872","description":"The (1) Htpasswd authentication source in the authcrypt module and (2) SimpleSAML_Session class in SimpleSAMLphp 1.14.11 and earlier allow remote attackers to conduct timing side-channel attacks by leveraging use of the standard comparison operator to compare secret material against 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input.","status":"published","published":"2017-09-01T21:29:00.563Z","modified":"2026-06-17T01:04:03.883Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:03:58.85945Z"}],"osv":[{"id":"CVE-2017-12872","description":"The (1) Htpasswd authentication source in the authcrypt module and (2) SimpleSAML_Session class in SimpleSAMLphp 1.14.11 and earlier allow remote attackers to conduct timing side-channel attacks by leveraging use of the standard comparison operator to compare secret material against user input.","status":"published","published":"2017-09-01T21:29:00.563Z","modified":"2026-10-24T10:30:41.896573037Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:04.159616Z"},{"id":"DEBIAN-CVE-2017-12872","description":"The (1) Htpasswd authentication source in the authcrypt module and (2) SimpleSAML_Session class in SimpleSAMLphp 1.14.11 and earlier allow remote attackers to conduct timing side-channel attacks by leveraging use of the standard comparison operator to compare secret material against user input.","status":"published","published":"2017-09-01T21:29:00.563Z","modified":"2026-09-01T20:03:42.515733318Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:28.50097Z"},{"id":"GHSA-v882-949x-6v28","title":"SimpleSAMLphp allows timing side-channel attacks","description":"The (1) Htpasswd 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