{
  "threat_severity" : "Important",
  "public_date" : "2020-08-07T00:00:00Z",
  "bugzilla" : {
    "description" : "httpd: Push diary crash on specifically crafted HTTP/2 header",
    "id" : "1866560",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1866560"
  },
  "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:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-400",
  "details" : [ "Apache HTTP Server versions 2.4.20 to 2.4.43. A specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a crash when the server actually tries to HTTP/2 PUSH a resource afterwards. Configuring the HTTP/2 feature via \"H2Push off\" will mitigate this vulnerability for unpatched servers.", "A flaw was found in Apache httpd in versions prior to 2.4.46. A specially crafted Cache-Digest header triggers negative argument to memmove() that could lead to a crash and denial of service. The highest threat from this vulnerability is to system availability." ],
  "statement" : "As per upstream this flaw only affects Apache HTTP Server versions 2.4.20 to 2.4.43. Therefore only httpd packages shipped with Red Hat Enterprise Linux 8 are affected.",
  "acknowledgement" : "Red Hat would like to thank the Apache project for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2020-09-10T00:00:00Z",
    "advisory" : "RHSA-2020:3714",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "httpd:2.4-8020020200824162909.4cda2c84"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions",
    "release_date" : "2020-09-14T00:00:00Z",
    "advisory" : "RHSA-2020:3734",
    "cpe" : "cpe:/a:redhat:rhel_e4s:8.0",
    "package" : "httpd:2.4-8000020200825105249.f8e95b4e"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.1 Extended Update Support",
    "release_date" : "2020-09-11T00:00:00Z",
    "advisory" : "RHSA-2020:3726",
    "cpe" : "cpe:/a:redhat:rhel_eus:8.1",
    "package" : "httpd:2.4-8010020200824180659.c27ad7f8"
  }, {
    "product_name" : "Red Hat Software Collections for Red Hat Enterprise Linux 6",
    "release_date" : "2020-09-14T00:00:00Z",
    "advisory" : "RHSA-2020:3733",
    "cpe" : "cpe:/a:redhat:rhel_software_collections:3::el6",
    "package" : "httpd24-httpd-0:2.4.34-18.el6.1"
  }, {
    "product_name" : "Red Hat Software Collections for Red Hat Enterprise Linux 7",
    "release_date" : "2020-09-14T00:00:00Z",
    "advisory" : "RHSA-2020:3733",
    "cpe" : "cpe:/a:redhat:rhel_software_collections:3::el7",
    "package" : "httpd24-httpd-0:2.4.34-18.el7.1"
  }, {
    "product_name" : "Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS",
    "release_date" : "2020-09-14T00:00:00Z",
    "advisory" : "RHSA-2020:3733",
    "cpe" : "cpe:/a:redhat:rhel_software_collections:3::el7",
    "package" : "httpd24-httpd-0:2.4.34-18.el7.1"
  }, {
    "product_name" : "Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS",
    "release_date" : "2020-09-14T00:00:00Z",
    "advisory" : "RHSA-2020:3733",
    "cpe" : "cpe:/a:redhat:rhel_software_collections:3::el7",
    "package" : "httpd24-httpd-0:2.4.34-18.el7.1"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "httpd",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "httpd",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "httpd",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat JBoss Core Services",
    "fix_state" : "Not affected",
    "package_name" : "httpd",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Web Server 2",
    "fix_state" : "Out of support scope",
    "package_name" : "httpd",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:2"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2020-9490\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-9490\nhttps://httpd.apache.org/security/vulnerabilities_24.html#CVE-2020-9490" ],
  "name" : "CVE-2020-9490",
  "mitigation" : {
    "value" : "Configuring the HTTP/2 feature via \"H2Push off\" will mitigate this vulnerability.",
    "lang" : "en:us"
  },
  "csaw" : false
}