{
  "threat_severity" : "Moderate",
  "public_date" : "2022-02-22T07:00:00Z",
  "bugzilla" : {
    "description" : "envoy: Null pointer dereference when using JWT filter safe_regex match",
    "id" : "2050744",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2050744"
  },
  "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-476",
  "details" : [ "Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions a crafted request crashes Envoy when a CONNECT request is sent to JWT filter configured with regex match. This provides a denial of service attack vector. The only workaround is to not use regex in the JWT filter. Users are advised to upgrade.", "A flaw was found in envoy. A crafted request can potentially trigger a NULL pointer dereference when using a WT filter safe_regex match." ],
  "affected_release" : [ {
    "product_name" : "OpenShift Service Mesh 2.0",
    "release_date" : "2022-04-07T00:00:00Z",
    "advisory" : "RHSA-2022:1276",
    "cpe" : "cpe:/a:redhat:service_mesh:2.0::el8",
    "package" : "servicemesh-proxy-0:2.0.9-3.el8"
  }, {
    "product_name" : "OpenShift Service Mesh 2.1",
    "release_date" : "2022-04-07T00:00:00Z",
    "advisory" : "RHSA-2022:1275",
    "cpe" : "cpe:/a:redhat:service_mesh:2.1::el8",
    "package" : "servicemesh-proxy-0:2.1.2-4.el8"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2021-43824\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-43824\nhttps://github.com/envoyproxy/envoy/security/advisories/GHSA-vj5m-rch8-5r2p" ],
  "name" : "CVE-2021-43824",
  "csaw" : false
}