CVE-2019-8460

{"id": "CVE-2019-8460", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "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}]}, "published": "2019-08-26T20:15:10.030", "references": [{"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/006_tcpsack.patch.sig", "tags": ["Exploit", "Vendor Advisory"], "source": "cve@checkpoint.com"}, {"url": "https://github.com/openbsd/src/commit/ed8fdce754a5d8d14c09e989d8877707bd43906f", "tags": ["Patch", "Third Party Advisory"], "source": "cve@checkpoint.com"}, {"url": "https://research.checkpoint.com/tcp-sack-security-issue-in-openbsd-cve-2019-8460/", "tags": ["Exploit", "Patch", "Press/Media Coverage", "Third Party Advisory"], "source": "cve@checkpoint.com"}, {"url": "https://security.netapp.com/advisory/ntap-20190905-0001/", "tags": ["Third Party Advisory"], "source": "cve@checkpoint.com"}, {"url": "https://us-cert.cisa.gov/ics/advisories/icsa-19-253-03", "source": "cve@checkpoint.com"}, {"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/006_tcpsack.patch.sig", "tags": ["Exploit", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/openbsd/src/commit/ed8fdce754a5d8d14c09e989d8877707bd43906f", "tags": ["Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://research.checkpoint.com/tcp-sack-security-issue-in-openbsd-cve-2019-8460/", "tags": ["Exploit", "Patch", "Press/Media Coverage", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security.netapp.com/advisory/ntap-20190905-0001/", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://us-cert.cisa.gov/ics/advisories/icsa-19-253-03", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "cve@checkpoint.com", "description": [{"lang": "en", "value": "CWE-1049"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-Other"}]}], "descriptions": [{"lang": "en", "value": "OpenBSD kernel version <= 6.5 can be forced to create long chains of TCP SACK holes that causes very expensive calls to tcp_sack_option() for every incoming SACK packet which can lead to a denial of service."}, {"lang": "es", "value": "La versi\u00f3n del n\u00facleo de OpenBSD anterior o igual a la versi\u00f3n 6.5 se puede forzar a crear largas cadenas de agujeros TCP SACK que provocan llamadas muy costosas a tcp_sack_option () para cada paquete SACK entrante que puede conducir a una denegaci\u00f3n de servicio."}], "lastModified": "2024-11-21T04:49:56.840", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2E0C4316-BB30-4BB0-B57D-61302AC4E93F", "versionEndIncluding": "6.5"}], "operator": "OR"}]}], "sourceIdentifier": "cve@checkpoint.com"}