{"id":"CVE-2019-0211","aliases":["ALPINE-CVE-2019-0211","BELL-CVE-2019-0211","DEBIAN-CVE-2019-0211","DSA-4422-1","EUVD-2019-1002","GHSA-w9rc-q752-88hf","RHSA-2019:0746","RHSA-2019:0980","RHSA-2019:1297","SUSE-SU-2019:0873-1","SUSE-SU-2019:0878-1","UBUNTU-CVE-2019-0211","USN-3937-1","openSUSE-SU-2019:1209-1"],"status":"published","title":"In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code...","description":"In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.65005,"percentile":0.99261,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":true},"cwes":["CWE-416"],"published":"2019-04-02T00:00:00Z","modified":"2026-10-24T10:30:35Z","kev":{"date_added":"2021-11-03","due_date":"2022-05-03","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2021-11-03"},{"source":"kev","since":"2021-11-03"}],"exploits":[{"source":"exploitdb","id":"EDB-46676","title":"Apache 2.4.17 \u003c 2.4.38 - 'apache2ctl graceful' 'logrotate' Local Privilege 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Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.","status":"published","published":"2019-04-08T21:31:09Z","modified":"2025-10-21T23:45:40.583Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:32:24.473448Z"}],"euvd":[{"id":"EUVD-2019-1002","description":"In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.","status":"published","published":"2019-04-08T21:31:09Z","modified":"2025-10-21T23:45:40Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"exploited_since":"2021-11-03","updated_at":"2026-11-02T20:31:24.172282Z"}],"ghsa":[{"id":"GHSA-w9rc-q752-88hf","title":"In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code...","description":"In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.","status":"published","published":"2022-05-13T01:09:38Z","modified":"2025-10-22T00:32:42Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T15:04:06.493434Z"}],"kev":[{"id":"CVE-2019-0211","title":"Apache HTTP Server Privilege Escalation Vulnerability","description":"Apache HTTP Server, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute code with the privileges of the parent process (usually root) by manipulating the scoreboard.","cwes":["CWE-416"],"kev":{"date_added":"2021-11-03","due_date":"2022-05-03","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:16.541131Z"}],"nvd":[{"id":"CVE-2019-0211","description":"In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.","status":"published","published":"2019-04-08T22:29:00.387Z","modified":"2026-06-17T02:07:58.71Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:05:11.426883Z"}],"osv":[{"id":"ALPINE-CVE-2019-0211","description":"In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.","status":"published","published":"2019-04-08T22:29:00.387Z","modified":"2026-09-21T06:17:52.440054182Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:27:47.663013Z"},{"id":"BELL-CVE-2019-0211","title":"CVE-2019-0211 does not affect BellSoft software","status":"withdrawn","published":"2023-08-31T12:14:59.182292Z","modified":"2026-01-26T09:49:14.42632Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:14.701973Z"},{"id":"CVE-2019-0211","description":"In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.","status":"published","published":"2019-04-08T22:29:00.387Z","modified":"2026-10-24T10:30:35.773342339Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:10.051046Z"},{"id":"DEBIAN-CVE-2019-0211","description":"In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.","status":"published","published":"2019-04-08T22:29:00.387Z","modified":"2026-09-21T07:00:07.285985517Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:31.170944Z"},{"id":"RHSA-2019:0746","title":"Red Hat Security Advisory: httpd24-httpd and httpd24-mod_auth_mellon security update","status":"published","published":"2024-09-13T19:49:48Z","modified":"2026-09-21T10:02:07Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:05.383061Z"},{"id":"RHSA-2019:0980","title":"Red Hat Security Advisory: httpd:2.4 security update","status":"published","published":"2024-09-16T02:21:43Z","modified":"2026-09-21T10:02:07Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:05.383061Z"},{"id":"RHSA-2019:1297","title":"Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.29 SP2 security update","status":"published","published":"2024-09-13T19:51:22Z","modified":"2026-10-14T10:01:11Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:06.0195Z"},{"id":"UBUNTU-CVE-2019-0211","description":"In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.","status":"published","published":"2019-04-02T00:00:00Z","modified":"2026-04-22T12:05:19.856658Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"},{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:18.772093Z"},{"id":"DSA-4422-1","title":"apache2 - security update","status":"published","published":"2019-04-03T00:00:00Z","modified":"2026-03-09T02:10:33.654781Z","updated_at":"2026-11-02T15:46:16.862196Z"},{"id":"openSUSE-SU-2019:1209-1","title":"Security update for apache2","description":"This update for apache2 fixes the following issues:\n\n* CVE-2019-0211: A flaw in the Apache HTTP Server allowed less-privileged child\n  processes or threads to execute arbitrary code with the privileges of the\n  parent process. Attackers with control over CGI scripts or extension modules\n  run by the server could have abused this issue to potentially gain super user\n  privileges. [bsc#1131233]\n\n* CVE-2019-0220: The Apache HTTP server did not use a consistent strategy for\n  URL normalization throughout all of its components. In particular,\n  consecutive slashes were not always collapsed. Attackers could potentially\n  abuse these inconsistencies to by-pass access control mechanisms and thus\n  gain unauthorized access to protected parts of the service. [bsc#1131241]\n\n* CVE-2019-0217: A race condition in Apache's 'mod_auth_digest' when running in\n  a threaded server could have allowed users with valid credentials to\n  authenticate using another username, bypassing configured access control\n  restrictions. [bsc#1131239]\n\n* CVE-2019-0197: When HTTP/2 support was enabled in the Apache server for a\n  'http' host or H2Upgrade was enabled for h2 on a 'https' host, an Upgrade\n  request from http/1.1 to http/2 that was not the first request on a\n  connection could lead to a misconfiguration and crash. This issue could have\n  been abused to mount a denial-of-service attack. Servers that never enabled\n  the h2 protocol or that only enabled it for https: and did not configure the\n  'H2Upgrade on' are unaffected. [bsc#1131245]\n\n* CVE-2019-0196: Through specially crafted network input the Apache's http/2\n  request handler could be lead to access previously freed memory while\n  determining the method of a request. This resulted in the request being\n  misclassified and thus being processed incorrectly. [bsc#1131237]\n\n\nThis update was imported from the SUSE:SLE-15:Update update project.","status":"published","published":"2019-04-16T08:27:23Z","modified":"2026-02-04T02:38:11.770324Z","updated_at":"2026-11-02T16:58:30.784344Z"},{"id":"SUSE-SU-2019:0873-1","title":"Security update for apache2","description":"This update for apache2 fixes the following issues:\n\n* CVE-2019-0211: A flaw in the Apache HTTP Server allowed less-privileged child\n  processes or threads to execute arbitrary code with the privileges of the\n  parent process. Attackers with control over CGI scripts or extension modules\n  run by the server could have abused this issue to potentially gain super user\n  privileges. [bsc#1131233]\n\n* CVE-2019-0220: The Apache HTTP server did not use a consistent strategy for\n  URL normalization throughout all of its components. In particular,\n  consecutive slashes were not always collapsed. Attackers could potentially\n  abuse these inconsistencies to by-pass access control mechanisms and thus\n  gain unauthorized access to protected parts of the service. [bsc#1131241]\n\n* CVE-2019-0217: A race condition in Apache's 'mod_auth_digest' when running in\n  a threaded server could have allowed users with valid credentials to\n  authenticate using another username, bypassing configured access control\n  restrictions. [bsc#1131239]\n\n* CVE-2019-0197: When HTTP/2 support was enabled in the Apache server for a\n  'http' host or H2Upgrade was enabled for h2 on a 'https' host, an Upgrade\n  request from http/1.1 to http/2 that was not the first request on a\n  connection could lead to a misconfiguration and crash. This issue could have\n  been abused to mount a denial-of-service attack. Servers that never enabled\n  the h2 protocol or that only enabled it for https: and did not configure the\n  'H2Upgrade on' are unaffected. [bsc#1131245]\n\n* CVE-2019-0196: Through specially crafted network input the Apache's http/2\n  request handler could be lead to access previously freed memory while\n  determining the method of a request. This resulted in the request being\n  misclassified and thus being processed incorrectly. [bsc#1131237]\n\n","status":"published","published":"2019-04-04T12:22:41Z","modified":"2026-02-04T03:18:05.402299Z","updated_at":"2026-11-02T15:53:45.926331Z"},{"id":"SUSE-SU-2019:0878-1","title":"Security update for apache2","description":"This update for apache2 fixes the following issues:\n\n* CVE-2019-0220: The Apache HTTP server did not use a consistent strategy for\n  URL normalization throughout all of its components. In particular,\n  consecutive slashes were not always collapsed. Attackers could potentially\n  abuse these inconsistencies to by-pass access control mechanisms and thus\n  gain unauthorized access to protected parts of the service. [bsc#1131241]\n\n* CVE-2019-0217: A race condition in Apache's 'mod_auth_digest' when running in\n  a threaded server could have allowed users with valid credentials to\n  authenticate using another username, bypassing configured access control\n  restrictions. [bsc#1131239]\n\n* CVE-2019-0211: A flaw in the Apache HTTP Server allowed less-privileged child\n  processes or threads to execute arbitrary code with the privileges of the\n  parent process. Attackers with control over CGI scripts or extension modules\n  run by the server could have abused this issue to potentially gain super user\n  privileges. [bsc#1131233]\n\n* CVE-2019-0197: When HTTP/2 support was enabled in the Apache server for a\n  'http' host or H2Upgrade was enabled for h2 on a 'https' host, an Upgrade\n  request from http/1.1 to http/2 that was not the first request on a\n  connection could lead to a misconfiguration and crash. This issue could have\n  been abused to mount a denial-of-service attack. Servers that never enabled\n  the h2 protocol or that only enabled it for https: and did not configure the\n  'H2Upgrade on' are unaffected. [bsc#1131245]\n\n* CVE-2019-0196: Through specially crafted network input the Apache's http/2\n  request handler could be lead to access previously freed memory while\n  determining the method of a request. This resulted in the request being\n  misclassified and thus being processed incorrectly. [bsc#1131237]\n\n","status":"published","published":"2019-04-04T14:59:53Z","modified":"2026-02-04T04:27:13.33086Z","updated_at":"2026-11-02T15:53:45.926331Z"},{"id":"USN-3937-1","title":"apache2 vulnerabilities","description":"Charles Fol discovered that the Apache HTTP Server incorrectly handled the\nscoreboard shared memory area. A remote attacker able to upload and run\nscripts could possibly use this issue to execute arbitrary code with root\nprivileges. (CVE-2019-0211)\n\nIt was discovered that the Apache HTTP Server HTTP/2 module incorrectly\nhandled certain requests. A remote attacker could possibly use this issue\nto cause the server to consume resources, leading to a denial of service.\nThis issue only affected Ubuntu 18.04 LTS and Ubuntu 18.10.\n(CVE-2018-17189)\n\nIt was discovered that the Apache HTTP Server incorrectly handled session\nexpiry times. When used with mod_session_cookie, this may result in the\nsession expiry time to be ignored, contrary to expectations.\n(CVE-2018-17199)\n\nCraig Young discovered that the Apache HTTP Server HTTP/2 module\nincorrectly handled certain requests. A remote attacker could possibly use\nthis issue to cause the server to process requests incorrectly. This issue\nonly affected Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2019-0196)\n\nSimon Kappel discovered that the Apache HTTP Server mod_auth_digest module\nincorrectly handled threads. A remote attacker with valid credentials could\npossibly use this issue to authenticate using another username, bypassing\naccess control restrictions. (CVE-2019-0217)\n\nBernhard Lorenz discovered that the Apache HTTP Server was inconsistent\nwhen processing requests containing multiple consecutive slashes. This\ncould lead to directives such as LocationMatch and RewriteRule to perform\ncontrary to expectations. (CVE-2019-0220)\n","status":"published","published":"2019-04-04T15:08:53Z","modified":"2026-04-22T09:55:14.837165Z","updated_at":"2026-11-02T16:58:14.019824Z"}]}}