{"id":"CVE-2017-20240","aliases":["DEBIAN-CVE-2017-20240","EUVD-2017-18978","GHSA-m538-6wp4-7h22","UBUNTU-CVE-2017-20240","openSUSE-SU-2026:11034-1"],"status":"published","title":"Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks","description":"Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks.\n\nThese versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-07","score":0.00319,"percentile":0.25013,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-208"],"published":"2026-06-12T13:19:15Z","modified":"2026-10-20T10:49:45Z","fixes":[{"ecosystem":"Debian:12","package":"libcrypt-pbkdf2-perl","fixed_in":["0.261630-1~deb13u1~deb12u1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libcrypt-pbkdf2-perl","fixed_in":["0.261630-1~deb13u1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libcrypt-pbkdf2-perl","fixed_in":["0.261630-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.261630-1~deb13u1~deb12u1"}]}],"versions":["0.161520-2"]},{"source":"osv","ecosystem":"Debian:13","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.261630-1~deb13u1"}]}],"versions":["0.161520-2","0.261630-1~deb13u1~deb12u1"]},{"source":"osv","ecosystem":"Debian:14","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.261630-1"}]}],"versions":["0.161520-2","0.261630-1~deb13u1","0.261630-1~deb13u1~deb12u1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.150900-1","0.160410-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.161520-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.161520-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.161520-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.161520-2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.161520-2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.161520-2","0.261630-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.161520-2"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"perl-Crypt-PBKDF2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.261630-1.1"}]}],"bundled":3}],"products":[{"vendor":"arodland","product":"crypt::pbkdf2"}],"references":[{"url":"https://github.com/arodland/Crypt-PBKDF2/pull/6","tags":["issue-tracking","fix","report"]},{"url":"https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.161520/source/lib/Crypt/PBKDF2.pm#L123-148","tags":["web","report"]},{"url":"https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changes","tags":["release-notes","web","report"]},{"url":"http://www.openwall.com/lists/oss-security/2026/06/12/3","tags":["web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-20240"},{"url":"https://github.com/advisories/GHSA-m538-6wp4-7h22"},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-20240","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2017-20240","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-20240","tags":["report"]},{"url":"https://lists.security.metacpan.org/cve-announce/msg/40929601/","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2017-20240","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-9638","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-9641","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2017-20240","title":"Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks","description":"Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks.\n\nThese versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.","status":"published","published":"2026-06-12T13:19:15.9Z","modified":"2026-06-12T16:59:33.477Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-208"],"updated_at":"2026-11-02T14:33:11.59359Z"}],"euvd":[{"id":"EUVD-2017-18978","description":"Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks.\n\nThese versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.","status":"published","published":"2026-06-12T13:19:15Z","modified":"2026-06-12T16:59:33Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T18:20:43.222Z"}],"ghsa":[{"id":"GHSA-m538-6wp4-7h22","title":"Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks.\n\nThese versions...","description":"Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks.\n\nThese versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.","status":"published","published":"2026-06-12T15:30:34Z","modified":"2026-06-12T18:32:56Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-208"],"updated_at":"2026-11-02T15:08:45.184845Z"}],"nvd":[{"id":"CVE-2017-20240","description":"Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks.\n\nThese versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.","status":"published","published":"2026-06-12T14:16:28.66Z","modified":"2026-06-17T01:15:29.013Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-208"],"updated_at":"2026-11-02T14:04:21.76411Z"}],"osv":[{"id":"CVE-2017-20240","description":"Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks.\n\nThese versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.","status":"published","published":"2026-06-12T14:16:28.66Z","modified":"2026-10-20T10:49:45.635297534Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:05.486486Z"},{"id":"DEBIAN-CVE-2017-20240","description":"Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks.  These versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.","status":"published","published":"2026-06-12T14:16:28.66Z","modified":"2026-09-01T20:03:47.717026269Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:29.100767Z"},{"id":"UBUNTU-CVE-2017-20240","description":"Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks. These versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.","status":"published","published":"2026-06-12T14:16:00Z","modified":"2026-10-17T12:53:16.350428002Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:14.977781Z"},{"id":"openSUSE-SU-2026:11034-1","title":"perl-Crypt-PBKDF2-0.261630-1.1 on GA media","description":"These are all security issues fixed in the perl-Crypt-PBKDF2-0.261630-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-06-15T00:00:00Z","modified":"2026-06-16T10:30:08.275473467Z","updated_at":"2026-11-02T16:58:38.95195Z"}]}}