{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "state": "PUBLISHED", "cveId": "CVE-2020-11080", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "dateUpdated": "2025-06-09T15:45:50.711Z", "dateReserved": "2020-03-30T00:00:00.000Z", "datePublished": "2020-06-03T00:00:00.000Z" }, "containers": { "cna": { "title": "Denial of service in nghttp2", "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2023-10-16T17:06:24.016Z" }, "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": [ "vendor-advisory" ], "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" }, { "url": "https://github.com/nghttp2/nghttp2/commit/f8da73bd042f810f34d19f9eae02b46d870af394" }, { "url": "https://www.oracle.com/security-alerts/cpuoct2020.html" }, { "name": "FEDORA-2020-43d5a372fc", "tags": [ "vendor-advisory" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/" }, { "url": "https://www.oracle.com/security-alerts/cpujan2021.html" }, { "url": "https://www.oracle.com//security-alerts/cpujul2021.html" }, { "name": "[debian-lts-announce] 20211017 [SECURITY] [DLA 2786-1] nghttp2 security update", "tags": [ "mailing-list" ], "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" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T11:21:14.514Z" }, "title": "CVE Program Container", "references": [ { "name": "DSA-4696", "tags": [ "vendor-advisory", "x_transferred" ], "url": "https://www.debian.org/security/2020/dsa-4696" }, { "name": "openSUSE-SU-2020:0802", "tags": [ "vendor-advisory", "x_transferred" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00024.html" }, { "name": "FEDORA-2020-f7d15c8b77", "tags": [ "vendor-advisory", "x_transferred" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AAC2AA36OTRHKSVM5OV7TTVB3CZIGEFL/" }, { "url": "https://www.oracle.com/security-alerts/cpujul2020.html", "tags": [ "x_transferred" ] }, { "url": "https://github.com/nghttp2/nghttp2/security/advisories/GHSA-q5wr-xfw9-q7xr", "tags": [ "x_transferred" ] }, { "url": "https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090", "tags": [ "x_transferred" ] }, { "url": "https://github.com/nghttp2/nghttp2/commit/f8da73bd042f810f34d19f9eae02b46d870af394", "tags": [ "x_transferred" ] }, { "url": "https://www.oracle.com/security-alerts/cpuoct2020.html", "tags": [ "x_transferred" ] }, { "name": "FEDORA-2020-43d5a372fc", "tags": [ "vendor-advisory", "x_transferred" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/" }, { "url": "https://www.oracle.com/security-alerts/cpujan2021.html", "tags": [ "x_transferred" ] }, { "url": "https://www.oracle.com//security-alerts/cpujul2021.html", "tags": [ "x_transferred" ] }, { "name": "[debian-lts-announce] 20211017 [SECURITY] [DLA 2786-1] nghttp2 security update", "tags": [ "mailing-list", "x_transferred" ], "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00011.html" }, { "url": "https://www.oracle.com/security-alerts/cpuapr2022.html", "tags": [ "x_transferred" ] }, { "name": "[debian-lts-announce] 20231016 [SECURITY] [DLA 3621-1] nghttp2 security update", "tags": [ "mailing-list", "x_transferred" ], "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00023.html" } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2025-06-09T15:44:48.717109Z", "id": "CVE-2020-11080", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-06-09T15:45:50.711Z" } } ] } }