{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2020-11080",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "dateUpdated": "2024-08-04T11:21:14.514Z",
        "dateReserved": "2020-03-30T00:00:00",
        "datePublished": "2020-06-03T00:00:00"
    },
    "containers": {
        "cna": {
            "title": "Denial of service in nghttp2",
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2023-10-16T17:06:24.016570"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection."
                }
            ],
            "affected": [
                {
                    "vendor": "nghttp2",
                    "product": "nghttp2",
                    "versions": [
                        {
                            "version": "< 1.41.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "name": "DSA-4696",
                    "tags": [
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                    "url": "https://www.debian.org/security/2020/dsa-4696"
                },
                {
                    "name": "openSUSE-SU-2020:0802",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00024.html"
                },
                {
                    "name": "FEDORA-2020-f7d15c8b77",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AAC2AA36OTRHKSVM5OV7TTVB3CZIGEFL/"
                },
                {
                    "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
                },
                {
                    "url": "https://github.com/nghttp2/nghttp2/security/advisories/GHSA-q5wr-xfw9-q7xr"
                },
                {
                    "url": "https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090"
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                    "url": "https://github.com/nghttp2/nghttp2/commit/f8da73bd042f810f34d19f9eae02b46d870af394"
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                    "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
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                {
                    "name": "FEDORA-2020-43d5a372fc",
                    "tags": [
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                    "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/"
                },
                {
                    "url": "https://www.oracle.com/security-alerts/cpujan2021.html"
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                },
                {
                    "name": "[debian-lts-announce] 20211017 [SECURITY] [DLA 2786-1] nghttp2 security update",
                    "tags": [
                        "mailing-list"
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                    "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00011.html"
                },
                {
                    "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
                },
                {
                    "name": "[debian-lts-announce] 20231016 [SECURITY] [DLA 3621-1] nghttp2 security update",
                    "tags": [
                        "mailing-list"
                    ],
                    "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00023.html"
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
                        "attackVector": "NETWORK",
                        "attackComplexity": "HIGH",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "availabilityImpact": "LOW",
                        "baseScore": 3.7,
                        "baseSeverity": "LOW"
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "lang": "en",
                            "description": "CWE-707 Improper Enforcement of Message or Data Structure",
                            "cweId": "CWE-707"
                        }
                    ]
                }
            ],
            "source": {
                "advisory": "GHSA-q5wr-xfw9-q7xr",
                "discovery": "UNKNOWN"
            }
        },
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                    "shortName": "CVE",
                    "dateUpdated": "2024-08-04T11:21:14.514Z"
                },
                "title": "CVE Program Container",
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                    {
                        "name": "DSA-4696",
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                        "tags": [
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                    {
                        "name": "FEDORA-2020-43d5a372fc",
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                        "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/"
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}