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{"bugzilla": {"description": "gRPC: sensitive information disclosure", "id": "2214463", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2214463"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.4", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H", "status": "draft"}, "cwe": "CWE-440", "details": ["When gRPC HTTP2 stack raised a header size exceeded error, it skipped parsing the rest of the HPACK frame. This caused any HPACK table mutations to also be skipped, resulting in a desynchronization of HPACK tables between sender and receiver. If leveraged, say, between a proxy and a backend, this could lead to requests from the proxy being interpreted as containing headers from different proxy clients - leading to an information leak that can be used for privilege escalation or data exfiltration. We recommend upgrading beyond the commit contained in\u00a0 https://github.com/grpc/grpc/pull/33005 https://github.com/grpc/grpc/pull/33005", "A flaw was found in gRPC. This flaw allows a remote attacker to obtain sensitive information, caused by a flaw when the gRPC HTTP2 stack raised a header size exceeded error. By sending a specially crafted request, an attacker can obtain sensitive information, and use this information to launch further attacks against the affected system."], "name": "CVE-2023-32731", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "rhc-worker-playbook", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "rhc-worker-playbook", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "grpc", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2023-06-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-32731\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-32731\nhttps://github.com/advisories/GHSA-cfgp-2977-2fmm"], "threat_severity": "Moderate"}