{
  "threat_severity" : "Moderate",
  "public_date" : "2021-08-05T00:00:00Z",
  "bugzilla" : {
    "description" : "httpd: Request splitting via HTTP/2 method injection and mod_proxy",
    "id" : "1966728",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1966728"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-476",
  "details" : [ "A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48.", "A NULL pointer dereference was found in Apache httpd mod_h2. The highest threat from this flaw is to system integrity." ],
  "affected_release" : [ {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2022-10-26T00:00:00Z",
    "advisory" : "RHSA-2022:7143",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-httpd-0:2.4.51-28.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services on RHEL 7",
    "release_date" : "2022-10-26T00:00:00Z",
    "advisory" : "RHSA-2022:7143",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el7",
    "package" : "jbcs-httpd24-httpd-0:2.4.51-28.el7jbcs"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2022-05-10T00:00:00Z",
    "advisory" : "RHSA-2022:1915",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "httpd:2.4-8060020220321163517.d63f516d"
  }, {
    "product_name" : "Red Hat Software Collections for Red Hat Enterprise Linux 7",
    "release_date" : "2022-09-29T00:00:00Z",
    "advisory" : "RHSA-2022:6753",
    "cpe" : "cpe:/a:redhat:rhel_software_collections:3::el7",
    "package" : "httpd24-httpd-0:2.4.34-23.el7.5"
  }, {
    "product_name" : "Text-Only JBCS",
    "release_date" : "2022-10-26T00:00:00Z",
    "advisory" : "RHSA-2022:7144",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1",
    "package" : "httpd"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "httpd",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "httpd",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "httpd",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Application Platform 6",
    "fix_state" : "Not affected",
    "package_name" : "httpd22",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_application_platform:6"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Web Server 2",
    "fix_state" : "Not affected",
    "package_name" : "httpd22",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:2"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2021-33193\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-33193\nhttps://portswigger.net/research/http2" ],
  "name" : "CVE-2021-33193",
  "mitigation" : {
    "value" : "This flaw can be mitigated by disabling HTTP/2. More information available at: https://httpd.apache.org/docs/2.4/mod/mod_http2.html",
    "lang" : "en:us"
  },
  "csaw" : false
}