{"id":"CVE-2017-15135","aliases":["DEBIAN-CVE-2017-15135","EUVD-2017-6595","GHSA-frrc-qvjw-hwj9","MGASA-2018-0193","RHSA-2018:0414","RHSA-2018:0515","SUSE-SU-2019:1207-1","SUSE-SU-2019:1207-2","UBUNTU-CVE-2017-15135","openSUSE-SU-2019:1397-1"],"status":"published","title":"It was found that 389-ds-base since 1.3.6.1 up to and including 1.4.0.3 did not always handle...","description":"It was found that 389-ds-base since 1.3.6.1 up to and including 1.4.0.3 did not always handle internal hash comparison operations correctly during the authentication process. A remote, unauthenticated attacker could potentially use this flaw to bypass the authentication process under very rare and specific circumstances.","severity":{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03828,"percentile":0.90157,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287"],"published":"2018-01-24T15:00:00Z","modified":"2026-09-01T20:02:40Z","fixes":[{"ecosystem":"Debian:12","package":"389-ds-base","fixed_in":["1.3.7.9-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"389-ds-base","fixed_in":["1.3.7.9-1"],"sources":["osv"]},{"ecosystem":"Mageia:6","package":"389-ds-base","fixed_in":["1.3.5.17-1.4.mga6"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"389-ds-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.7.9-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"389-ds-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.7.9-1"}]}]},{"source":"osv","ecosystem":"Mageia:6","package":"389-ds-base","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.5.17-1.4.mga6"}]}]},{"source":"osv","ecosystem":"Red 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Advisory","fix","report"]},{"url":"https://access.redhat.com/errata/RHSA-2018:0414","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2018:0515","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00033.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-15135","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2017-15135","tags":["report"]},{"url":"https://github.com/advisories/GHSA-frrc-qvjw-hwj9"},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-15135","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2018-0193.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=22718","tags":["report"]},{"url":"https://access.redhat.com/security/cve/cve-2017-15135","tags":["web"]},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1536343","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1537314","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2018/rhsa-2018_0414.json","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-15135","tags":["advisory","report"]},{"url":"https://access.redhat.com/security/cve/CVE-2018-1054","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-1054","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-1054","tags":["advisory"]},{"url":"https://pagure.io/389-ds-base/issue/49545","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2018/rhsa-2018_0515.json","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2019/suse-su-20191207-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1076530","tags":["report"]},{"url":"https://bugzilla.suse.com/1096368","tags":["report"]},{"url":"https://bugzilla.suse.com/1105606","tags":["report"]},{"url":"https://bugzilla.suse.com/1106699","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2017-15134","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-15135","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-10850","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-10935","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-14624","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2019/suse-su-20191207-2/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2017-15135","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/YAYQ2CHUAX2LL7XOLPLU4GKMFXDM252V/#YAYQ2CHUAX2LL7XOLPLU4GKMFXDM252V","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2017-15135","description":"It was found that 389-ds-base since 1.3.6.1 up to and including 1.4.0.3 did not always handle internal hash comparison operations correctly during the authentication process. A remote, unauthenticated attacker could potentially use this flaw to bypass the authentication process under very rare and specific circumstances.","status":"published","published":"2018-01-24T15:00:00Z","modified":"2024-08-05T19:50:16.357Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:33:14.271248Z"}],"euvd":[{"id":"EUVD-2017-6595","description":"It was found that 389-ds-base since 1.3.6.1 up to and including 1.4.0.3 did not always handle internal hash comparison operations correctly during the authentication process. A remote, unauthenticated attacker could potentially use this flaw to bypass the authentication process under very rare and specific circumstances.","status":"published","published":"2018-01-24T15:00:00Z","modified":"2024-08-05T19:50:16Z","updated_at":"2026-11-03T02:23:14.849102Z"}],"ghsa":[{"id":"GHSA-frrc-qvjw-hwj9","title":"It was found that 389-ds-base since 1.3.6.1 up to and including 1.4.0.3 did not always handle...","description":"It was found that 389-ds-base since 1.3.6.1 up to and including 1.4.0.3 did not always handle internal hash comparison operations correctly during the authentication process. A remote, unauthenticated attacker could potentially use this flaw to bypass the authentication process under very rare and specific circumstances.","status":"published","published":"2022-05-14T01:01:39Z","modified":"2023-02-10T05:06:46Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:54:02.847747Z"}],"nvd":[{"id":"CVE-2017-15135","description":"It was found that 389-ds-base since 1.3.6.1 up to and including 1.4.0.3 did not always handle internal hash comparison operations correctly during the authentication process. A remote, unauthenticated attacker could potentially use this flaw to bypass the authentication process under very rare and specific circumstances.","status":"published","published":"2018-01-24T15:29:01.167Z","modified":"2026-06-17T01:07:18.747Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","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-287"],"updated_at":"2026-11-02T14:04:13.257031Z"}],"osv":[{"id":"CVE-2017-15135","description":"It was found that 389-ds-base since 1.3.6.1 up to and including 1.4.0.3 did not always handle internal hash comparison operations correctly during the authentication process. A remote, unauthenticated attacker could potentially use this flaw to bypass the authentication process under very rare and specific circumstances.","status":"published","published":"2018-01-24T15:29:01.167Z","modified":"2026-04-16T06:15:57.569487103Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:04.572713Z"},{"id":"DEBIAN-CVE-2017-15135","description":"It was found that 389-ds-base since 1.3.6.1 up to and including 1.4.0.3 did not always handle internal hash comparison operations correctly during the authentication process. A remote, unauthenticated attacker could potentially use this flaw to bypass the authentication process under very rare and specific circumstances.","status":"published","published":"2018-01-24T15:29:01.167Z","modified":"2026-09-01T20:02:40.611520992Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:28.801885Z"},{"id":"RHSA-2018:0414","title":"Red Hat Security Advisory: 389-ds-base security and bug fix update","status":"published","published":"2024-09-16T01:00:03Z","modified":"2026-06-26T12:21:55.139708745Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:04.822845Z"},{"id":"RHSA-2018:0515","title":"Red Hat Security Advisory: 389-ds-base security update","status":"published","published":"2024-09-16T01:00:10Z","modified":"2026-06-26T12:21:55.571869169Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:04.822845Z"},{"id":"UBUNTU-CVE-2017-15135","description":"It was found that 389-ds-base since 1.3.6.1 up to and including 1.4.0.3 did not always handle internal hash comparison operations correctly during the authentication process. A remote, unauthenticated attacker could potentially use this flaw to bypass the authentication process under very rare and specific circumstances.","status":"withdrawn","published":"2018-01-24T15:29:00Z","modified":"2025-07-16T08:13:01.717125Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:14.563448Z"},{"id":"MGASA-2018-0193","title":"Updated 389-ds-base packages fix security vulnerability","description":"It was discovered that a lack of size check in slapi_ct_memcmp()\nfunction may lead to authentication bypass through pre-hashed\nuserPassword attributes under highly specific circumstances\n(CVE-2017-15135).\n","status":"published","published":"2018-04-06T22:54:47Z","modified":"2026-04-16T06:26:28.042266268Z","updated_at":"2026-11-02T15:49:40.442238Z"},{"id":"openSUSE-SU-2019:1397-1","title":"Security update for 389-ds","description":"This update for 389-ds fixes the following issues:\n\nThe following security vulnerabilities were addressed:\n\n- CVE-2018-10850: Fixed a race condition on reference counter that would lead\n  to a denial of service using persistent search (bsc#1096368)\n- CVE-2017-15134: Fixed a remote denial of service via search filters in\n  slapi_filter_sprintf in slapd/util.c (bsc#1076530)\n- CVE-2017-15135: Fixed authentication bypass due to lack of size check in\n  slapi_ct_memcmp function in ch_malloc.c (bsc#1076530)\n- CVE-2018-10935: Fixed an issue that allowed users to cause a crash via\n  ldapsearch with server side sorts (bsc#1105606)\n- CVE-2018-14624: The lock controlling the error log was not correctly used\n  when re-opening the log file in log__error_emergency(), allowing an attacker to\n  send a flood of modifications to a very large DN, which could have caused slapd\n  to crash (bsc#1106699).\n\nThis update was imported from the SUSE:SLE-15:Update update project.","status":"published","published":"2019-05-15T14:46:47Z","modified":"2026-02-04T03:42:19.207344Z","updated_at":"2026-11-02T16:58:30.784344Z"},{"id":"SUSE-SU-2019:1207-1","title":"Security update for 389-ds","description":"This update for 389-ds fixes the following issues:\n\nThe following security vulnerabilities were addressed:\n\n- CVE-2018-10850: Fixed a race condition on reference counter that would lead\n  to a denial of service using persistent search (bsc#1096368)\n- CVE-2017-15134: Fixed a remote denial of service via search filters in\n  slapi_filter_sprintf in slapd/util.c (bsc#1076530)\n- CVE-2017-15135: Fixed authentication bypass due to lack of size check in\n  slapi_ct_memcmp function in ch_malloc.c (bsc#1076530)\n- CVE-2018-10935: Fixed an issue that allowed users to cause a crash via\n  ldapsearch with server side sorts (bsc#1105606)\n- CVE-2018-14624: The lock controlling the error log was not correctly used\n  when re-opening the log file in log__error_emergency(), allowing an attacker to\n  send a flood of modifications to a very large DN, which could have caused slapd\n  to crash (bsc#1106699).\n","status":"published","published":"2019-05-10T12:02:53Z","modified":"2026-02-04T02:17:49.341394Z","updated_at":"2026-11-02T15:53:45.926331Z"},{"id":"SUSE-SU-2019:1207-2","title":"Security update for 389-ds","description":"This update for 389-ds fixes the following issues:\n\nThe following security vulnerabilities were addressed:\n\n- CVE-2018-10850: Fixed a race condition on reference counter that would lead\n  to a denial of service using persistent search (bsc#1096368)\n- CVE-2017-15134: Fixed a remote denial of service via search filters in\n  slapi_filter_sprintf in slapd/util.c (bsc#1076530)\n- CVE-2017-15135: Fixed authentication bypass due to lack of size check in\n  slapi_ct_memcmp function in ch_malloc.c (bsc#1076530)\n- CVE-2018-10935: Fixed an issue that allowed users to cause a crash via\n  ldapsearch with server side sorts (bsc#1105606)\n- CVE-2018-14624: The lock controlling the error log was not correctly used\n  when re-opening the log file in log__error_emergency(), allowing an attacker to\n  send a flood of modifications to a very large DN, which could have caused slapd\n  to crash (bsc#1106699).\n","status":"published","published":"2019-07-01T13:04:11Z","modified":"2026-02-04T04:02:54.685605Z","updated_at":"2026-11-02T15:53:45.926331Z"}]}}