CVE-2020-35680

{"id": "CVE-2020-35680", "cveTags": [], "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": "2020-12-24T16:15:15.600", "references": [{"url": "https://github.com/openbsd/src/commit/6c3220444ed06b5796dedfd53a0f4becd903c0d1", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LKTFBQCHGMVPR4IZWHQIYAPM5J3LN3J/", "source": "cve@mitre.org"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TYAYXRV2DM5K4RU7RHCDZSA2UF6VCTRC/", "source": "cve@mitre.org"}, {"url": "https://poolp.org/posts/2020-12-24/december-2020-opensmtpd-6.8.0p1-released-fixed-several-bugs-proposed-several-diffs-book-is-on-github/", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://security.gentoo.org/glsa/202105-12", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.mail-archive.com/misc%40opensmtpd.org/msg05188.html", "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "smtpd/lka_filter.c in OpenSMTPD before 6.8.0p1, in certain configurations, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted pattern of client activity, because the filter state machine does not properly maintain the I/O channel between the SMTP engine and the filters layer."}, {"lang": "es", "value": "El archivo smtpd/lka_filter.c en OpenSMTPD versiones anteriores a 6.8.0p1, en determinadas configuraciones, permite a atacantes remotos causar una denegaci\u00f3n de servicio (desreferencia del puntero NULL y fallo del demonio) por medio de un patr\u00f3n dise\u00f1ado de actividad del cliente, porque la m\u00e1quina de estado del filtro no mantiene apropiadamente el canal de I/O entre el motor SMTP y la capa de filtros"}], "lastModified": "2023-11-07T03:22:01.627", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:opensmtpd:opensmtpd:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "95277BD3-1335-4B27-AE1A-61FB5C85FE60", "versionEndExcluding": "6.8.0"}, {"criteria": "cpe:2.3:a:opensmtpd:opensmtpd:6.8.0:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "65FA0447-DC89-4609-824B-ED31E56AD47D"}, {"criteria": "cpe:2.3:a:opensmtpd:opensmtpd:6.8.0:patch1-rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DDFB59E5-863A-454F-BDC4-8894E9A15B3D"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "36D96259-24BD-44E2-96D9-78CE1D41F956"}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}