{
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    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2023-35945",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2023-06-20T14:02:45.597Z",
        "datePublished": "2023-07-13T20:41:15.690Z",
        "dateUpdated": "2024-10-31T16:24:53.808Z"
    },
    "containers": {
        "cna": {
            "title": "Envoy vulnerable to HTTP/2 memory leak in nghttp2 codec",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-400",
                            "lang": "en",
                            "description": "CWE-400: Uncontrolled Resource Consumption",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 7.5,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-jfxv-29pc-x22r",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-jfxv-29pc-x22r"
                },
                {
                    "name": "https://github.com/nghttp2/nghttp2/blob/e7f59406556c80904b81b593d38508591bb7523a/lib/nghttp2_session.c#L3346",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/nghttp2/nghttp2/blob/e7f59406556c80904b81b593d38508591bb7523a/lib/nghttp2_session.c#L3346"
                }
            ],
            "affected": [
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                    "vendor": "envoyproxy",
                    "product": "envoy",
                    "versions": [
                        {
                            "version": ">= 1.26.0, < 1.26.3",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.25.0, < 1.25.8",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.24.0, < 1.24.9",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.23.0, < 1.23.11",
                            "status": "affected"
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            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2023-07-13T20:41:15.690Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Envoy is a cloud-native high-performance edge/middle/service proxy. Envoy’s HTTP/2 codec may leak a header map and bookkeeping structures upon receiving `RST_STREAM` immediately followed by the `GOAWAY` frames from an upstream server. In nghttp2, cleanup of pending requests due to receipt of the `GOAWAY` frame skips de-allocation of the bookkeeping structure and pending compressed header. The error return [code path] is taken if connection is already marked for not sending more requests due to `GOAWAY` frame. The clean-up code is right after the return statement, causing memory leak. Denial of service through memory exhaustion. This vulnerability was patched in versions(s) 1.26.3, 1.25.8, 1.24.9, 1.23.11."
                }
            ],
            "source": {
                "advisory": "GHSA-jfxv-29pc-x22r",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-02T16:37:40.544Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-jfxv-29pc-x22r",
                        "tags": [
                            "x_refsource_CONFIRM",
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                        ],
                        "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-jfxv-29pc-x22r"
                    },
                    {
                        "name": "https://github.com/nghttp2/nghttp2/blob/e7f59406556c80904b81b593d38508591bb7523a/lib/nghttp2_session.c#L3346",
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://github.com/nghttp2/nghttp2/blob/e7f59406556c80904b81b593d38508591bb7523a/lib/nghttp2_session.c#L3346"
                    }
                ]
            },
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-10-31T16:24:45.853511Z",
                                "id": "CVE-2023-35945",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
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                                        "Technical Impact": "partial"
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                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                ],
                "title": "CISA ADP Vulnrichment",
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}