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{"acknowledgement": "Red Hat would like to thank the Envoy security team for reporting this issue.", "affected_release": [{"advisory": "RHSA-2021:1322", "cpe": "cpe:/a:redhat:service_mesh:1.1::el8", "package": "servicemesh-proxy-0:1.1.13-1.el8", "product_name": "OpenShift Service Mesh 1.1", "release_date": "2021-04-22T00:00:00Z"}, {"advisory": "RHSA-2021:1324", "cpe": "cpe:/a:redhat:service_mesh:2.0::el8", "package": "servicemesh-proxy-0:2.0.3-1.el8", "product_name": "OpenShift Service Mesh 2.0", "release_date": "2021-04-22T00:00:00Z"}], "bugzilla": {"description": "envoyproxy/envoy: integer overflow handling large grpc-timeouts", "id": "1942272", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1942272"}, "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-190", "details": ["An issue was discovered in Envoy through 1.71.1. There is a remotely exploitable integer overflow in which a very large grpc-timeout value leads to unexpected timeout calculations.", "A flaw was found in envoyproxy/envoy. An attacker, able to craft a packet which specifies a large grpc-timeout, can potentially cause envoy to incorrectly calculate the timeouts resulting in a denial of service. The highest threat from this vulnerability is to system availability."], "name": "CVE-2021-28682", "public_date": "2021-04-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-28682\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-28682\nhttps://istio.io/latest/news/security/istio-security-2021-003/"], "threat_severity": "Important"}