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{"affected_release": [{"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 2.0", "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", "product_name": "OpenShift Service Mesh 2.1", "release_date": "2022-04-07T00:00:00Z"}], "bugzilla": {"description": "envoy: Use-after-free when tunneling TCP over HTTP", "id": "2050748", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2050748"}, "csaw": false, "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-416", "details": ["Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions of Envoy a crash occurs when configured for :ref:`upstream tunneling <envoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config>` and the downstream connection disconnects while the the upstream connection or http/2 stream is still being established. There are no workarounds for this issue. Users are advised to upgrade.", "A flaw was found in envoy. If a downstream source disconnects during upstream connection establishment when tunneling TCP over HTTP, a use-after-free can occur, resulting in a denial of service."], "name": "CVE-2021-43826", "public_date": "2022-02-22T07:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-43826\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-43826\nhttps://github.com/envoyproxy/envoy/security/advisories/GHSA-cmx3-fvgf-83mf"], "threat_severity": "Moderate", "upstream_fix": "envoy 1.18.6, envoy 1.19.3, envoy 1.20.2, envoy 1.21.1"}