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{"affected_release": [{"advisory": "RHSA-2023:4623", "cpe": "cpe:/a:redhat:service_mesh:2.2::el8", "package": "openshift-service-mesh/proxyv2-rhel8:2.2.9-2", "product_name": "Red Hat OpenShift Service Mesh 2.2 for RHEL 8", "release_date": "2023-08-11T00:00:00Z"}], "bugzilla": {"description": "envoy: Crash when a redirect url without a state param is received in the oauth filter", "id": "2182155", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2182155"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "verified"}, "details": ["Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, the OAuth filter assumes that a `state` query param is present on any response that looks like an OAuth redirect response. Sending it a request with the URI path equivalent to the redirect path, without the `state` parameter, will lead to abnormal termination of Envoy process. Versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9 contain a patch. The issue can also be mitigated by locking down OAuth traffic, disabling the filter, or by filtering traffic before it reaches the OAuth filter (e.g. via a lua script).", "A flaw was found in Envoy. If Envoy is running with the OAuth filter enabled, a malicious actor could construct a request which would cause denial of service, crashing Envoy."], "name": "CVE-2023-27496", "package_state": [{"cpe": "cpe:/a:redhat:service_mesh:2.1", "fix_state": "Will not fix", "package_name": "servicemesh-proxy", "product_name": "OpenShift Service Mesh 2.1"}], "public_date": "2023-04-04T19:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-27496\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-27496"], "threat_severity": "Moderate"}

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