{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "OpenSMTPD before 6.6.4 allows remote code execution because of an out-of-bounds read in mta_io in mta_session.c for multi-line replies. Although this vulnerability affects the client side of OpenSMTPD, it is possible to attack a server because the server code launches the client code during bounce handling."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-05-04T17:06:36", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://www.openbsd.org/security.html"}, {"tags": ["x_refsource_MISC"], "url": "https://www.openwall.com/lists/oss-security/2020/02/24/5"}, {"name": "[oss-security] 20200226 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794)", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2020/02/26/1"}, {"name": "DSA-4634", "tags": ["vendor-advisory", "x_refsource_DEBIAN"], "url": "https://www.debian.org/security/2020/dsa-4634"}, {"name": "20200227 LPE and RCE in OpenSMTPD's default install (CVE-2020-8794)", "tags": ["mailing-list", "x_refsource_FULLDISC"], "url": "http://seclists.org/fulldisclosure/2020/Feb/32"}, {"name": "[oss-security] 20200301 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794)", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2020/03/01/1"}, {"name": "[oss-security] 20200301 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794)", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2020/03/01/2"}, {"tags": ["x_refsource_MISC"], "url": "http://packetstormsecurity.com/files/156633/OpenSMTPD-Out-Of-Bounds-Read-Local-Privilege-Escalation.html"}, {"name": "FEDORA-2020-b92d7083ca", "tags": ["vendor-advisory", "x_refsource_FEDORA"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E/"}, {"name": "USN-4294-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "https://usn.ubuntu.com/4294-1/"}, {"name": "[oss-security] 20210504 21Nails: Multiple vulnerabilities in Exim", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2021/05/04/7"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2020-8794", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "OpenSMTPD before 6.6.4 allows remote code execution because of an out-of-bounds read in mta_io in mta_session.c for multi-line replies. Although this vulnerability affects the client side of OpenSMTPD, it is possible to attack a server because the server code launches the client code during bounce handling."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://www.openbsd.org/security.html", "refsource": "MISC", "url": "https://www.openbsd.org/security.html"}, {"name": "https://www.openwall.com/lists/oss-security/2020/02/24/5", "refsource": "MISC", "url": "https://www.openwall.com/lists/oss-security/2020/02/24/5"}, {"name": "[oss-security] 20200226 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794)", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2020/02/26/1"}, {"name": "DSA-4634", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2020/dsa-4634"}, {"name": "20200227 LPE and RCE in OpenSMTPD's default install (CVE-2020-8794)", "refsource": "FULLDISC", "url": "http://seclists.org/fulldisclosure/2020/Feb/32"}, {"name": "[oss-security] 20200301 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794)", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2020/03/01/1"}, {"name": "[oss-security] 20200301 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794)", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2020/03/01/2"}, {"name": "http://packetstormsecurity.com/files/156633/OpenSMTPD-Out-Of-Bounds-Read-Local-Privilege-Escalation.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/156633/OpenSMTPD-Out-Of-Bounds-Read-Local-Privilege-Escalation.html"}, {"name": "FEDORA-2020-b92d7083ca", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E/"}, {"name": "USN-4294-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4294-1/"}, {"name": "[oss-security] 20210504 21Nails: Multiple vulnerabilities in Exim", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2021/05/04/7"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T10:12:10.566Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.openbsd.org/security.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.openwall.com/lists/oss-security/2020/02/24/5"}, {"name": "[oss-security] 20200226 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794)", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2020/02/26/1"}, {"name": "DSA-4634", "tags": ["vendor-advisory", "x_refsource_DEBIAN", "x_transferred"], "url": "https://www.debian.org/security/2020/dsa-4634"}, {"name": "20200227 LPE and RCE in OpenSMTPD's default install (CVE-2020-8794)", "tags": ["mailing-list", "x_refsource_FULLDISC", "x_transferred"], "url": "http://seclists.org/fulldisclosure/2020/Feb/32"}, {"name": "[oss-security] 20200301 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794)", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2020/03/01/1"}, {"name": "[oss-security] 20200301 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794)", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2020/03/01/2"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://packetstormsecurity.com/files/156633/OpenSMTPD-Out-Of-Bounds-Read-Local-Privilege-Escalation.html"}, {"name": "FEDORA-2020-b92d7083ca", "tags": ["vendor-advisory", "x_refsource_FEDORA", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E/"}, {"name": "USN-4294-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "https://usn.ubuntu.com/4294-1/"}, {"name": "[oss-security] 20210504 21Nails: Multiple vulnerabilities in Exim", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2021/05/04/7"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2020-8794", "datePublished": "2020-02-25T16:38:07", "dateReserved": "2020-02-07T00:00:00", "dateUpdated": "2024-08-04T10:12:10.566Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:opensmtpd:opensmtpd:*:*:*:*:*:*:*:*", "matchCriteriaId": "AE4076E6-F78B-421A-BFE1-35E326B88753", "versionEndExcluding": "6.6.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*", "matchCriteriaId": "A31C8344-3E02-4EB8-8BD8-4C84B7959624", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "matchCriteriaId": "80F0FA5D-8D3B-4C0E-81E2-87998286AF33", "vulnerable": true}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "matchCriteriaId": "36D96259-24BD-44E2-96D9-78CE1D41F956", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenSMTPD before 6.6.4 allows remote code execution because of an out-of-bounds read in mta_io in mta_session.c for multi-line replies. Although this vulnerability affects the client side of OpenSMTPD, it is possible to attack a server because the server code launches the client code during bounce handling."}, {"lang": "es", "value": "OpenSMTPD versiones anteriores a 6.6.4, permite una ejecuci\u00f3n de c\u00f3digo remota debido a una lectura fuera de l\u00edmites en la funci\u00f3n mta_io en el archivo mta_session.c para respuestas multil\u00ednea. Aunque esta vulnerabilidad afecta al lado del cliente de OpenSMTPD, es posible atacar a un servidor porque el c\u00f3digo del servidor inicia el c\u00f3digo del cliente durante el manejo de saltos."}], "id": "CVE-2020-8794", "lastModified": "2023-11-07T03:26:45.440", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 10.0, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-02-25T17:15:13.197", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/156633/OpenSMTPD-Out-Of-Bounds-Read-Local-Privilege-Escalation.html"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://seclists.org/fulldisclosure/2020/Feb/32"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2020/02/26/1"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2020/03/01/1"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2020/03/01/2"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/05/04/7"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E/"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://usn.ubuntu.com/4294-1/"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2020/dsa-4634"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://www.openbsd.org/security.html"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "url": "https://www.openwall.com/lists/oss-security/2020/02/24/5"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}