CVE-2020-35498

{"id": "CVE-2020-35498", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2021-02-11T18:15:15.677", "references": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1908845", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00032.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UJ4DXFJWMZ325ECZXPZOSK7BOEDJZHPR/", "source": "secalert@redhat.com"}, {"url": "https://security.gentoo.org/glsa/202311-16", "source": "secalert@redhat.com"}, {"url": "https://www.debian.org/security/2021/dsa-4852", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://www.openwall.com/lists/oss-security/2021/02/10/4", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1908845", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00032.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UJ4DXFJWMZ325ECZXPZOSK7BOEDJZHPR/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security.gentoo.org/glsa/202311-16", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.debian.org/security/2021/dsa-4852", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.openwall.com/lists/oss-security/2021/02/10/4", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-400"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability was found in openvswitch. A limitation in the implementation of userspace packet parsing can allow a malicious user to send a specially crafted packet causing the resulting megaflow in the kernel to be too wide, potentially causing a denial of service. The highest threat from this vulnerability is to system availability."}, {"lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad en openvswitch. Una limitaci\u00f3n en la implementaci\u00f3n del an\u00e1lisis de paquetes del espacio de usuario puede permitir a un usuario malicioso env\u00ede un paquete especialmente dise\u00f1ado, lo que hace que el megaflujo resultante en el kernel sea demasiado amplio, causando potencialmente una denegaci\u00f3n de servicio. La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema"}], "lastModified": "2025-04-23T20:15:20.000", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F4AAAA44-4650-4BE6-B705-767720A51BFA", "versionEndExcluding": "2.5.12", "versionStartIncluding": "2.5.0"}, {"criteria": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E78C71DF-5303-4887-A958-AA8974559F4B", "versionEndExcluding": "2.6.10", "versionStartIncluding": "2.6.0"}, {"criteria": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F43F9591-492D-42E1-B241-86A19538348C", "versionEndExcluding": "2.7.13", "versionStartIncluding": "2.7.0"}, {"criteria": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7D17633D-6F1B-4482-98D0-F4D87F7E79F1", "versionEndExcluding": "2.8.11", "versionStartIncluding": "2.8.0"}, {"criteria": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4F9E06B0-A849-40E0-BA5E-4B94D51E34AC", "versionEndExcluding": "2.9.9", "versionStartIncluding": "2.9.0"}, {"criteria": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B7D812F1-C079-45D5-BB34-2599993B9E15", "versionEndExcluding": "2.10.7", "versionStartIncluding": "2.10.0"}, {"criteria": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1B7DFA70-32AD-4739-9020-C32C22A2677E", "versionEndExcluding": "2.11.6", "versionStartIncluding": "2.11.0"}, {"criteria": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B6189A6A-85C4-469E-A1CA-8506ADD26CF6", "versionEndExcluding": "2.12.3", "versionStartIncluding": "2.12.0"}, {"criteria": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "62204DE2-CD28-46B5-AE9A-42F2ADB9CC65", "versionEndExcluding": "2.13.3", "versionStartIncluding": "2.13.0"}, {"criteria": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "170C778E-64B7-484A-9497-9BF6C137B364", "versionEndExcluding": "2.14.2", "versionStartIncluding": "2.14.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}