{"schemaVersion":3,"id":"CVE-2021-44224","aliases":["ALPINE-CVE-2021-44224","UBUNTU-CVE-2021-44224","DEBIAN-CVE-2021-44224"],"status":"published","duplicateOf":null,"title":null,"description":"A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).","dates":{"published":"2021-12-20T11:20:13.000Z","modified":"2024-08-04T04:17:24.919Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.2,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Alpine","score":8.2,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","exploitability":10,"impact":7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":8.2,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","exploitability":10,"impact":7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":8.2,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","exploitability":10,"impact":7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":8.2,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":6.4,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:N/I:P/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.82295,"percentile":0.99658,"severity":"critical","asOf":"2026-10-18T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-18T00:00:00.000Z","baselineScore":0.82295},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.82295,"percentile":0.99658}],"last30":[{"date":"2026-09-18T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.82295,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.82295,"percentile":0.99658}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-476","name":"NULL Pointer Dereference","description":"The product dereferences a pointer that it expects to be valid but is NULL.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/476.html"}],"affected":[{"vendor":"apache software foundation","product":"apache http server","name":"Apache HTTP Server","label":"apache http server","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 2.4.7, < Apache HTTP Server 2.4*","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 2.4.7, < Apache HTTP Server 2.4*","eol":null,"hubHref":"/vendor/apache_software_foundation/apache_http_server"},{"vendor":"apache","product":"http_server","name":"http server","label":"http_server","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 2.4.7, < 2.4.52","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 2.4.7, < 2.4.52","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"apache-http-server","label":"Apache HTTP Server","category":"server-app"}},"hubHref":"/vendor/apache/http_server"},{"vendor":"alpine","product":"apache2","name":"apache2","label":"apache2","ecosystem":"Alpine Linux","cpePart":null,"purl":"pkg:apk/alpine/apache2","purlType":"apk","versions":[{"text":"< 2.4.52-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.4.52-r0","eol":null,"hubHref":null},{"vendor":"apple","product":"mac_os_x","name":"mac os x","label":"mac_os_x","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"10.15.7","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2020-001","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2021-001","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2021-002","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2021-003","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2021-004","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2021-005","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2021-006","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2021-007","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2021-008","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2022-001","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2022-002","noFixRecorded":false,"fixedIn":null},{"text":"10.15.7:security_update_2022-003","noFixRecorded":false,"fixedIn":null}],"versionsText":"10.15.7 | 10.15.7:security_update_2020-001 | 10.15.7:security_update_2021-001 | 10.15.7:security_update_2021-002 | 10.15.7:security_update_2021-003 | 10.15.7:security_update_2021-004 | 10.15.7:security_update_2021-005 | 10.15.7:security_update_2021-006 | 10.15.7:security_update_2021-007 | 10.15.7:security_update_2021-008 | 10.15.7:security_update_2022-001 | 10.15.7:security_update_2022-002 | 10.15.7:security_update_2022-003","eol":null,"hubHref":"/vendor/apple/mac_os_x"},{"vendor":"apple","product":"macos","name":"macos","label":"macos","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 10.15.7","noFixRecorded":false,"fixedIn":null},{"text":"≥ 11.0, < 11.6.6","noFixRecorded":false,"fixedIn":null},{"text":"≥ 12.0.0, < 12.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 10.15.7 | ≥ 11.0, < 11.6.6 | ≥ 12.0.0, < 12.4","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"macos","label":"Apple macOS","category":"os"}},"hubHref":"/vendor/apple/macos"},{"vendor":"debian","product":"apache2","name":"apache2","label":"apache2","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/apache2","purlType":"deb","versions":[{"text":"< 2.4.52-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.4.52-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"apache2","name":"apache2","label":"apache2","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/apache2","purlType":"deb","versions":[{"text":"< 2.4.7-1ubuntu4.22+esm3","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.18-2ubuntu3.17+esm4","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.29-1ubuntu4.21","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.41-4ubuntu3.9","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.52-1ubuntu1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.4.7-1ubuntu4.22+esm3 | < 2.4.18-2ubuntu3.17+esm4 | < 2.4.29-1ubuntu4.21 | < 2.4.41-4ubuntu3.9 | < 2.4.52-1ubuntu1","eol":null,"hubHref":null},{"vendor":"debian","product":"debian_linux","name":"debian linux","label":"debian_linux","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"10.0","noFixRecorded":false,"fixedIn":null},{"text":"11.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"10.0 | 11.0","eol":{"isEol":true,"eolDate":"2024-06-30T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"10","label":"10 (Buster)","eolFrom":"2024-06-30T00:00:00.000Z","isLts":false,"isMaintained":true,"latestVersion":"10.13"},"product":{"name":"debian","label":"Debian","category":"os"}},"hubHref":"/vendor/debian/debian_linux"},{"vendor":"fedoraproject","product":"fedora","name":"fedora","label":"fedora","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"34","noFixRecorded":false,"fixedIn":null},{"text":"35","noFixRecorded":false,"fixedIn":null},{"text":"36","noFixRecorded":false,"fixedIn":null}],"versionsText":"34 | 35 | 36","eol":{"isEol":true,"eolDate":"2022-06-07T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"34","label":"34","eolFrom":"2022-06-07T00:00:00.000Z","isLts":false,"isMaintained":false,"latestVersion":null},"product":{"name":"fedora","label":"Fedora Linux","category":"os"}},"hubHref":"/vendor/fedoraproject/fedora"},{"vendor":"oracle","product":"communications_element_manager","name":"communications element manager","label":"communications_element_manager","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 9.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 9.0","eol":null,"hubHref":"/vendor/oracle/communications_element_manager"},{"vendor":"oracle","product":"communications_operations_monitor","name":"communications operations monitor","label":"communications_operations_monitor","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"4.0","noFixRecorded":false,"fixedIn":null},{"text":"4.3","noFixRecorded":false,"fixedIn":null},{"text":"4.4","noFixRecorded":false,"fixedIn":null},{"text":"5.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"4.0 | 4.3 | 4.4 | 5.0","eol":null,"hubHref":"/vendor/oracle/communications_operations_monitor"},{"vendor":"oracle","product":"communications_session_report_manager","name":"communications session report manager","label":"communications_session_report_manager","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 9.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 9.0","eol":null,"hubHref":"/vendor/oracle/communications_session_report_manager"},{"vendor":"oracle","product":"communications_session_route_manager","name":"communications session route manager","label":"communications_session_route_manager","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 9.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 9.0","eol":null,"hubHref":"/vendor/oracle/communications_session_route_manager"},{"vendor":"oracle","product":"http_server","name":"http server","label":"http_server","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null},{"text":"12.2.1.3.0","noFixRecorded":false,"fixedIn":null},{"text":"12.2.1.4.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"na | 12.2.1.3.0 | 12.2.1.4.0","eol":null,"hubHref":"/vendor/oracle/http_server"},{"vendor":"oracle","product":"instantis_enterprisetrack","name":"instantis enterprisetrack","label":"instantis_enterprisetrack","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"17.1","noFixRecorded":false,"fixedIn":null},{"text":"17.2","noFixRecorded":false,"fixedIn":null},{"text":"17.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"17.1 | 17.2 | 17.3","eol":null,"hubHref":"/vendor/oracle/instantis_enterprisetrack"},{"vendor":"tenable","product":"tenable.sc","name":"tenable.sc","label":"tenable.sc","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 5.14.0, < 5.20.0","noFixRecorded":false,"fixedIn":null},{"text":"≥ 5.16.0, < 202201.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 5.14.0, < 5.20.0 | ≥ 5.16.0, < 202201.1","eol":null,"hubHref":"/vendor/tenable/tenablesc"}],"affectedCount":16,"eol":{"hasEol":true,"count":2},"references":[{"url":"http://httpd.apache.org/security/vulnerabilities_24.html","label":"httpd.apache.org/security/vulnerabilities_24.html","hostname":"httpd.apache.org","tags":["X Refsource MISC","Vendor Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2021/12/20/3","label":"www.openwall.com/lists/oss-security/2021/12/20/3","hostname":"www.openwall.com","tags":["Mailing List","X Refsource MLIST","Third Party Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BFSWOH4X77CV7AH7C4RMHUBDWKQDL4YH/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["Vendor Advisory","X Refsource FEDORA"]},{"url":"https://www.debian.org/security/2022/dsa-5035","label":"www.debian.org/security/2022/dsa-5035","hostname":"www.debian.org","tags":["Vendor Advisory","X Refsource DEBIAN","Third Party Advisory"]},{"url":"https://www.oracle.com/security-alerts/cpujan2022.html","label":"www.oracle.com/security-alerts/cpujan2022.html","hostname":"www.oracle.com","tags":["X Refsource MISC","Patch","Third Party Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20211224-0001/","label":"security.netapp.com/advisory/ntap-20211224-0001/","hostname":"security.netapp.com","tags":["X Refsource CONFIRM","Third Party Advisory"]},{"url":"https://www.tenable.com/security/tns-2022-01","label":"www.tenable.com/security/tns-2022-01","hostname":"www.tenable.com","tags":["X Refsource CONFIRM","Third Party Advisory"]},{"url":"https://www.tenable.com/security/tns-2022-03","label":"www.tenable.com/security/tns-2022-03","hostname":"www.tenable.com","tags":["X Refsource CONFIRM","Third Party Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGWILBORT67SHMSLYSQZG2NMXGCMPUZO/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["Vendor Advisory","X Refsource FEDORA"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7H26WJ6TPKNWV3QKY4BHKUKQVUTZJTD/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["Vendor Advisory","X Refsource FEDORA"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X73C35MMMZGBVPQQCH7LQZUMYZNQA5FO/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["Vendor Advisory","X Refsource FEDORA"]},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.html","label":"www.oracle.com/security-alerts/cpuapr2022.html","hostname":"www.oracle.com","tags":["X Refsource MISC","Patch","Third Party Advisory"]},{"url":"https://support.apple.com/kb/HT213257","label":"support.apple.com/kb/HT213257","hostname":"support.apple.com","tags":["X Refsource CONFIRM","Third Party Advisory"]},{"url":"https://support.apple.com/kb/HT213256","label":"support.apple.com/kb/HT213256","hostname":"support.apple.com","tags":["X Refsource CONFIRM","Third Party Advisory"]},{"url":"https://support.apple.com/kb/HT213255","label":"support.apple.com/kb/HT213255","hostname":"support.apple.com","tags":["X Refsource CONFIRM","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2022/May/33","label":"seclists.org/fulldisclosure/2022/May/33","hostname":"seclists.org","tags":["Mailing List","X Refsource FULLDISC","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2022/May/35","label":"seclists.org/fulldisclosure/2022/May/35","hostname":"seclists.org","tags":["Mailing List","X Refsource FULLDISC","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2022/May/38","label":"seclists.org/fulldisclosure/2022/May/38","hostname":"seclists.org","tags":["Mailing List","X Refsource FULLDISC","Third Party Advisory"]},{"url":"https://security.gentoo.org/glsa/202208-20","label":"security.gentoo.org/glsa/202208-20","hostname":"security.gentoo.org","tags":["Vendor Advisory","X Refsource GENTOO","Third Party Advisory"]},{"url":"https://security.alpinelinux.org/vuln/CVE-2021-44224","label":"security.alpinelinux.org/vuln/CVE-2021-44224","hostname":"security.alpinelinux.org","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-44224","label":"ubuntu.com/security/CVE-2021-44224","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://httpd.apache.org/security/vulnerabilities_24.html","label":"httpd.apache.org/security/vulnerabilities_24.html","hostname":"httpd.apache.org","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-5212-1","label":"ubuntu.com/security/notices/USN-5212-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/notices/USN-5212-2","label":"ubuntu.com/security/notices/USN-5212-2","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-44224","label":"www.cve.org/CVERecord?id=CVE-2021-44224","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-44224","label":"security-tracker.debian.org/tracker/CVE-2021-44224","hostname":"security-tracker.debian.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-44224","label":"nvd.nist.gov/vuln/detail/CVE-2021-44224","hostname":"nvd.nist.gov","tags":["Oval","Advisory"]}],"lineage":{"upstream":[],"downstream":["DLA-2907-1","DSA-5035-1","MGASA-2021-0577","OPENSUSE-SU-2022:0091-1","OPENSUSE-SU-2024:11695-1","RHSA-2022:1915","RHSA-2022:6753","RHSA-2022:7143","SUSE-SU-2022:0065-1","SUSE-SU-2022:0091-1","SUSE-SU-2022:0091-2","SUSE-SU-2022:0119-1","SUSE-SU-2022:0440-1","SUSE-SU-2026:2686-1","USN-5212-1","USN-5212-2"],"duplicates":[],"related":["OPENSUSE-SU-2022:0091-1","OPENSUSE-SU-2024:11695-1","SUSE-SU-2022:0065-1","SUSE-SU-2022:0091-1","SUSE-SU-2022:0091-2","SUSE-SU-2022:0119-1","SUSE-SU-2022:0440-1","SUSE-SU-2026:2686-1","USN-5212-1","USN-5212-2"]},"timeline":[{"kind":"published","date":"2021-12-20T11:20:13.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T04:17:24.919Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":49,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T08:41:18.129Z","stale":false,"partial":false}}