{"id":"CVE-2019-3883","aliases":["DEBIAN-CVE-2019-3883","DLA-1779-1","DLA-3399-1","EUVD-2019-13493","GHSA-c65q-p9xj-798w","MGASA-2019-0411","RHSA-2019:1896","RHSA-2019:3401","SUSE-SU-2019:2155-1","UBUNTU-CVE-2019-3883"],"status":"published","title":"In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will...","description":"In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worker for at most 'ioblocktimeout' seconds. However this timeout applies only for un-encrypted requests. Connections using SSL/TLS are not taking this timeout into account during reads, and may hang longer.An unauthenticated attacker could repeatedly create hanging LDAP requests to hang all the workers, resulting in a Denial of Service.","severity":{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.08202,"percentile":0.94916,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-772"],"published":"2019-04-17T00:00:00Z","modified":"2026-10-17T12:56:08Z","fixes":[{"ecosystem":"Debian:12","package":"389-ds-base","fixed_in":["1.4.1.5-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"389-ds-base","fixed_in":["1.4.1.5-1"],"sources":["osv"]},{"ecosystem":"Debian:8","package":"389-ds-base","fixed_in":["1.3.3.5-4+deb8u6"],"sources":["osv"]},{"ecosystem":"Red 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389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worker for at most 'ioblocktimeout' seconds. However this timeout applies only for un-encrypted requests. Connections using SSL/TLS are not taking this timeout into account during reads, and may hang longer.An unauthenticated attacker could repeatedly create hanging LDAP requests to hang all the workers, resulting in a Denial of Service.","status":"published","published":"2019-04-17T00:00:00Z","modified":"2024-08-04T19:19:18.605Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-772"],"updated_at":"2026-11-02T14:20:23.048861Z"}],"euvd":[{"id":"EUVD-2019-13493","description":"In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worker for at most 'ioblocktimeout' seconds. However this timeout applies only for un-encrypted requests. Connections using SSL/TLS are not taking this timeout into account during reads, and may hang longer.An unauthenticated attacker could repeatedly create hanging LDAP requests to hang all the workers, resulting in a Denial of Service.","status":"published","published":"2019-04-17T00:00:00Z","modified":"2024-08-04T19:19:18Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-03T03:06:54.939848Z"}],"ghsa":[{"id":"GHSA-c65q-p9xj-798w","title":"In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will...","description":"In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worker for at most 'ioblocktimeout' seconds. However this timeout applies only for un-encrypted requests. Connections using SSL/TLS are not taking this timeout into account during reads, and may hang longer.An unauthenticated attacker could repeatedly create hanging LDAP requests to hang all the workers, resulting in a Denial of Service.","status":"published","published":"2022-05-13T01:13:34Z","modified":"2023-04-24T09:30:19Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-772"],"updated_at":"2026-11-02T14:54:33.425205Z"}],"nvd":[{"id":"CVE-2019-3883","description":"In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worker for at most 'ioblocktimeout' seconds. However this timeout applies only for un-encrypted requests. Connections using SSL/TLS are not taking this timeout into account during reads, and may hang longer.An unauthenticated attacker could repeatedly create hanging LDAP requests to hang all the workers, resulting in a Denial of Service.","status":"published","published":"2019-04-17T14:29:03.62Z","modified":"2026-06-17T02:35:48.147Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-772"],"updated_at":"2026-11-02T14:05:11.426883Z"}],"osv":[{"id":"CVE-2019-3883","description":"In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worker for at most 'ioblocktimeout' seconds. However this timeout applies only for un-encrypted requests. Connections using SSL/TLS are not taking this timeout into account during reads, and may hang longer.An unauthenticated attacker could repeatedly create hanging LDAP requests to hang all the workers, resulting in a Denial of Service.","status":"published","published":"2019-04-17T14:29:03.62Z","modified":"2026-04-16T04:37:23.644265476Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:12.363788Z"},{"id":"DEBIAN-CVE-2019-3883","description":"In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worker for at most 'ioblocktimeout' seconds. However this timeout applies only for un-encrypted requests. Connections using SSL/TLS are not taking this timeout into account during reads, and may hang longer.An unauthenticated attacker could repeatedly create hanging LDAP requests to hang all the workers, resulting in a Denial of Service.","status":"published","published":"2019-04-17T14:29:03.62Z","modified":"2026-09-21T07:03:18.618996628Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:32.221385Z"},{"id":"RHSA-2019:1896","title":"Red Hat Security Advisory: 389-ds-base security and bug fix update","status":"published","published":"2024-09-16T02:37:18Z","modified":"2026-06-26T12:21:06.980485987Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:53:06.0195Z"},{"id":"RHSA-2019:3401","title":"Red Hat Security Advisory: 389-ds:1.4 security, bug fix, and enhancement update","status":"published","published":"2024-09-16T02:37:25Z","modified":"2026-07-01T10:05:34Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:53:06.0195Z"},{"id":"UBUNTU-CVE-2019-3883","description":"In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worker for at most 'ioblocktimeout' seconds. However this timeout applies only for un-encrypted requests. Connections using SSL/TLS are not taking this timeout into account during reads, and may hang longer.An unauthenticated attacker could repeatedly create hanging LDAP requests to hang all the workers, resulting in a Denial of Service.","status":"published","published":"2019-04-17T14:29:00Z","modified":"2026-10-17T12:56:08.864687924Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:21.741399Z"},{"id":"DLA-1779-1","title":"389-ds-base - security update","status":"published","published":"2019-05-06T00:00:00Z","modified":"2026-03-09T01:19:00.92518Z","updated_at":"2026-11-02T15:46:09.777694Z"},{"id":"DLA-3399-1","title":"389-ds-base - security update","status":"published","published":"2023-04-24T00:00:00Z","modified":"2026-03-09T01:20:05.255613Z","updated_at":"2026-11-02T15:46:11.734021Z"},{"id":"MGASA-2019-0411","title":"Updated 389-ds-base packages fix security vulnerabilities","description":"he updated packages fix security vulnerabilities and a packaging problem:\n\nAn out-of-bounds memory read flaw was found in the way 389-ds-base handled\ncertain LDAP search filters, affecting all versions including 1.4.x. A\nremote, unauthenticated attacker could potentially use this flaw to make\nns-slapd crash via a specially crafted LDAP request, thus resulting in\ndenial of service. (CVE-2018-1054)\n\n389-ds-base before versions 1.3.8.5, 1.4.0.12 is vulnerable to a Cleartext\nStorage of Sensitive Information. By default, when the Replica and/or\nretroChangeLog plugins are enabled, 389-ds-base stores passwords in\nplaintext format in their respective changelog files. An attacker with\nsufficiently high privileges, such as root or Directory Manager, can\nquery these files in order to retrieve plaintext passwords.\n(CVE-2018-10871)\n\nIn 389-ds-base up to version 1.4.1.2, requests are handled by workers\nthreads. Each sockets will be waited by the worker for at most\n'ioblocktimeout' seconds. However this timeout applies only for un-\nencrypted requests. Connections using SSL/TLS are not taking this timeout\ninto account during reads, and may hang longer.An unauthenticated attacker\ncould repeatedly create hanging LDAP requests to hang all the workers,\nresulting in a Denial of Service. (CVE-2019-3883)\n\nA flaw was found in the 'deref' plugin of 389-ds-base where it could use\nthe 'search' permission to display attribute values. In some configurations,\nthis could allow an authenticated attacker to view private attributes, such\nas password hashes. (CVE-2019-14824)\n\nThere were conflicts between files from svrcore and 389-ds-base which\nprevented the installation of 389-ds (mga#25709)\n","status":"published","published":"2019-12-25T19:08:41Z","modified":"2026-04-16T04:44:29.833326244Z","updated_at":"2026-11-02T15:49:41.151324Z"},{"id":"SUSE-SU-2019:2155-1","title":"Security update for 389-ds","description":"This update for 389-ds to version 1.4.0.26 fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2016-5416: Fixed an information disclosure where a anonymous user could read the default ACI (bsc#991201).\n- CVE-2018-1054: Fixed a denial of service via search filters in SetUnicodeStringFromUTF_8() (bsc#1083689).\n- CVE-2018-1089: Fixed a buffer overflow via large filter value (bsc#1092187).\n- CVE-2018-10871: Fixed an information disclosure in certain plugins leading to the disclosure of plaintext password to an privileged attackers (bsc#1099465).\n- CVE-2018-14638: Fixed a denial of service through a crash in delete_passwdPolicy () (bsc#1108674).\n- CVE-2018-14648: Fixed a denial of service caused by malformed values in search queries (bsc#1109609).\n- CVE-2018-10935: Fixed a denial of service related to ldapsearch with server side sort (bsc#1105606).\n- CVE-2019-3883: Fixed a denial of service caused by hanging LDAP requests over TLS (bsc#1132385).\n","status":"published","published":"2019-08-15T15:51:09Z","modified":"2026-02-04T04:35:43.300712Z","updated_at":"2026-11-02T15:53:46.44301Z"}]}}