{
  "threat_severity" : "Low",
  "public_date" : "2020-02-24T00:00:00Z",
  "bugzilla" : {
    "description" : "tomcat: Regression in handling of Transfer-Encoding header allows for HTTP request smuggling",
    "id" : "1806849",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1806849"
  },
  "cvss3" : {
    "cvss3_base_score" : "4.3",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
    "status" : "verified"
  },
  "cwe" : "CWE-444",
  "details" : [ "The refactoring present in Apache Tomcat 9.0.28 to 9.0.30, 8.5.48 to 8.5.50 and 7.0.98 to 7.0.99 introduced a regression. The result of the regression was that invalid Transfer-Encoding headers were incorrectly processed leading to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.", "The refactoring in 9.0.28 introduced a regression. The result of the regression was that invalid Transfer-Encoding headers were incorrectly processed leading to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.\nIt affects the versions of Apache Tomcat 9 (9.0.28 to 9.0.30), Tomcat 8 (8.5.48 to 8.5.50), and Tomcat 7 (7.0.98 to 7.0.99)." ],
  "statement" : "This flaw did not affect the versions of Tomcat as shipped with Red Enterprise Linux 5, 6, 7 and 8, as they did not include the vulnerable code, which was introduced in a later version of the package.\nOpenDaylight in Red Hat OpenStack 10 & 13 was in technical preview status, because of this no fixes will be released for it.",
  "acknowledgement" : "Red Hat would like to thank @ZeddYu (Apache Tomcat Security Team) for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Red Hat JBoss Web Server 5.3 on RHEL 6",
    "release_date" : "2020-04-21T00:00:00Z",
    "advisory" : "RHSA-2020:1520",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:5.3::el6",
    "package" : "jws5-tomcat-0:9.0.30-3.redhat_4.1.el6jws"
  }, {
    "product_name" : "Red Hat JBoss Web Server 5.3 on RHEL 6",
    "release_date" : "2020-04-21T00:00:00Z",
    "advisory" : "RHSA-2020:1520",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:5.3::el6",
    "package" : "jws5-tomcat-native-0:1.2.23-4.redhat_4.el6jws"
  }, {
    "product_name" : "Red Hat JBoss Web Server 5.3 on RHEL 7",
    "release_date" : "2020-04-21T00:00:00Z",
    "advisory" : "RHSA-2020:1520",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:5.3::el7",
    "package" : "jws5-tomcat-0:9.0.30-3.redhat_4.1.el7jws"
  }, {
    "product_name" : "Red Hat JBoss Web Server 5.3 on RHEL 7",
    "release_date" : "2020-04-21T00:00:00Z",
    "advisory" : "RHSA-2020:1520",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:5.3::el7",
    "package" : "jws5-tomcat-native-0:1.2.23-4.redhat_4.el7jws"
  }, {
    "product_name" : "Red Hat JBoss Web Server 5.3 on RHEL 8",
    "release_date" : "2020-04-21T00:00:00Z",
    "advisory" : "RHSA-2020:1520",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:5.3::el8",
    "package" : "jws5-tomcat-0:9.0.30-3.redhat_4.1.el8jws"
  }, {
    "product_name" : "Red Hat JBoss Web Server 5.3 on RHEL 8",
    "release_date" : "2020-04-21T00:00:00Z",
    "advisory" : "RHSA-2020:1520",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:5.3::el8",
    "package" : "jws5-tomcat-native-0:1.2.23-4.redhat_4.el8jws"
  }, {
    "product_name" : "Red Hat JBoss Web Server (JWS) 5.3",
    "release_date" : "2020-04-21T00:00:00Z",
    "advisory" : "RHSA-2020:1521",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:5.3",
    "package" : "tomcat"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Decision Manager 7",
    "fix_state" : "Not affected",
    "package_name" : "tomcat",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_brms_platform:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "tomcat5",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "tomcat6",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "tomcat",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "pki-deps:10.6/pki-servlet-engine",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Fuse 7",
    "fix_state" : "Not affected",
    "package_name" : "tomcat",
    "cpe" : "cpe:/a:redhat:jboss_fuse:7"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Application Platform 6",
    "fix_state" : "Out of support scope",
    "package_name" : "jbossweb",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_application_platform:6"
  }, {
    "product_name" : "Red Hat JBoss Fuse 6",
    "fix_state" : "Out of support scope",
    "package_name" : "tomcat",
    "cpe" : "cpe:/a:redhat:jboss_fuse:6"
  }, {
    "product_name" : "Red Hat JBoss Web Server 3",
    "fix_state" : "Not affected",
    "package_name" : "tomcat",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:3"
  }, {
    "product_name" : "Red Hat OpenStack Platform 10 (Newton)",
    "fix_state" : "Out of support scope",
    "package_name" : "opendaylight",
    "cpe" : "cpe:/a:redhat:openstack:10"
  }, {
    "product_name" : "Red Hat OpenStack Platform 13 (Queens)",
    "fix_state" : "Will not fix",
    "package_name" : "opendaylight",
    "cpe" : "cpe:/a:redhat:openstack:13"
  }, {
    "product_name" : "Red Hat Process Automation 7",
    "fix_state" : "Not affected",
    "package_name" : "tomcat",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_bpms_platform:7"
  }, {
    "product_name" : "Red Hat support for Spring Boot",
    "fix_state" : "Not affected",
    "package_name" : "tomcat",
    "cpe" : "cpe:/a:redhat:openshift_application_runtimes:1.0"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2019-17569\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-17569\nhttps://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.100\nhttps://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.51\nhttps://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.31" ],
  "name" : "CVE-2019-17569",
  "csaw" : false
}