{
  "threat_severity" : "Low",
  "public_date" : "2021-03-31T00:00:00Z",
  "bugzilla" : {
    "description" : "curl: TLS 1.3 session ticket mix-up with HTTPS proxy host",
    "id" : "1941965",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1941965"
  },
  "cvss3" : {
    "cvss3_base_score" : "3.7",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-290",
  "details" : [ "curl 7.63.0 to and including 7.75.0 includes vulnerability that allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS 1.3 session tickets. When using a HTTPS proxy and TLS 1.3, libcurl can confuse session tickets arriving from the HTTPS proxy but work as if they arrived from the remote server and then wrongly \"short-cut\" the host handshake. When confusing the tickets, a HTTPS proxy can trick libcurl to use the wrong session ticket resume for the host and thereby circumvent the server TLS certificate check and make a MITM attack to be possible to perform unnoticed. Note that such a malicious HTTPS proxy needs to provide a certificate that curl will accept for the MITMed server for an attack to work - unless curl has been told to ignore the server certificate check.", "A flaw was found in the way libcurl handled TLS 1.3 session tickets. A malicious HTTPS proxy could possibly use this flaw to make libcurl resume a TLS session it previously had with the proxy while intending to resume a TLS session with a target server, making it possible for the proxy to perform a man-in-the-middle attack." ],
  "acknowledgement" : "Red Hat would like to thank the Curl project for reporting this issue. Upstream acknowledges Mingtao Yang (Facebook) as the original reporter.",
  "affected_release" : [ {
    "product_name" : "JBoss Core Services Apache HTTP Server 2.4.37 SP8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2471",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1",
    "package" : "jbcs-httpd24-curl"
  }, {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-0:1-18.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-apr-0:1.6.3-105.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-apr-util-0:1.6.1-82.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-brotli-0:1.0.6-40.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-curl-0:7.77.0-2.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-httpd-0:2.4.37-74.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-jansson-0:2.11-55.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-mod_cluster-native-0:1.3.16-5.Final_redhat_2.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-mod_http2-0:1.15.7-17.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-mod_jk-0:1.2.48-16.redhat_1.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-mod_md-1:2.0.8-36.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-mod_security-0:2.9.2-63.GA.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-nghttp2-0:1.39.2-37.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-openssl-1:1.1.1g-6.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-openssl-chil-0:1.0.0-5.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-openssl-pkcs11-0:0.4.10-20.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services on RHEL 7",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el7",
    "package" : "jbcs-httpd24-0:1-18.jbcs.el7"
  }, {
    "product_name" : "JBoss Core Services on RHEL 7",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el7",
    "package" : "jbcs-httpd24-apr-0:1.6.3-105.jbcs.el7"
  }, {
    "product_name" : "JBoss Core Services on RHEL 7",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el7",
    "package" : "jbcs-httpd24-apr-util-0:1.6.1-82.jbcs.el7"
  }, {
    "product_name" : "JBoss Core Services on RHEL 7",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el7",
    "package" : "jbcs-httpd24-curl-0:7.77.0-2.jbcs.el7"
  }, {
    "product_name" : "JBoss Core Services on RHEL 7",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el7",
    "package" : "jbcs-httpd24-httpd-0:2.4.37-74.jbcs.el7"
  }, {
    "product_name" : "JBoss Core Services on RHEL 7",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el7",
    "package" : "jbcs-httpd24-jansson-0:2.11-55.jbcs.el7"
  }, {
    "product_name" : "JBoss Core Services on RHEL 7",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el7",
    "package" : "jbcs-httpd24-mod_cluster-native-0:1.3.16-5.Final_redhat_2.jbcs.el7"
  }, {
    "product_name" : "JBoss Core Services on RHEL 7",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el7",
    "package" : "jbcs-httpd24-mod_http2-0:1.15.7-17.jbcs.el7"
  }, {
    "product_name" : "JBoss Core Services on RHEL 7",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el7",
    "package" : "jbcs-httpd24-mod_jk-0:1.2.48-16.redhat_1.jbcs.el7"
  }, {
    "product_name" : "JBoss Core Services on RHEL 7",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el7",
    "package" : "jbcs-httpd24-mod_md-1:2.0.8-36.jbcs.el7"
  }, {
    "product_name" : "JBoss Core Services on RHEL 7",
    "release_date" : "2021-06-17T00:00:00Z",
    "advisory" : "RHSA-2021:2472",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el7",
    "package" : "jbcs-httpd24-mod_security-0:2.9.2-63.GA.jbcs.el7"
  } ],
  "package_state" : [ {
    "product_name" : ".NET Core 2.1 on Red Hat Enterprise Linux",
    "fix_state" : "Not affected",
    "package_name" : "rh-dotnet21-curl",
    "cpe" : "cpe:/a:redhat:rhel_dotnet:2.1"
  }, {
    "product_name" : ".NET Core 3.1 on Red Hat Enterprise Linux",
    "fix_state" : "Not affected",
    "package_name" : "rh-dotnet31-curl",
    "cpe" : "cpe:/a:redhat:rhel_dotnet:3.1"
  }, {
    "product_name" : "Red Hat Ceph Storage 2",
    "fix_state" : "Out of support scope",
    "package_name" : "curl",
    "cpe" : "cpe:/a:redhat:ceph_storage:2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "curl",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "curl",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "curl",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "curl",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Software Collections",
    "fix_state" : "Not affected",
    "package_name" : "httpd24-curl",
    "cpe" : "cpe:/a:redhat:rhel_software_collections:3"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2021-22890\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-22890\nhttps://curl.se/docs/CVE-2021-22890.html" ],
  "name" : "CVE-2021-22890",
  "csaw" : false
}