{"id":"CVE-2020-8794","state":"PUBLISHED","title":"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 clie","description":"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.","publishedAt":"2020-02-25T16:38:07.000Z","updatedAt":"2024-08-04T10:12:10.566Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://www.openbsd.org/security.html","https://www.openwall.com/lists/oss-security/2020/02/24/5","http://www.openwall.com/lists/oss-security/2020/02/26/1","https://www.debian.org/security/2020/dsa-4634","http://seclists.org/fulldisclosure/2020/Feb/32","http://www.openwall.com/lists/oss-security/2020/03/01/1","http://www.openwall.com/lists/oss-security/2020/03/01/2","http://packetstormsecurity.com/files/156633/OpenSMTPD-Out-Of-Bounds-Read-Local-Privilege-Escalation.html","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E/","https://usn.ubuntu.com/4294-1/","http://www.openwall.com/lists/oss-security/2021/05/04/7"],"weaknesses":[],"ingestedAt":"2026-10-29T19:47:44.297Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/8xxx/CVE-2020-8794.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2020-8794","state":"PUBLISHED","datePublished":"2020-02-25T16:38:07.000Z","dateUpdated":"2024-08-04T10:12:10.566Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2020-02-07T00:00:00.000Z"},"containers":{"cna":{"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."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://www.openbsd.org/security.html","tags":["x_refsource_MISC"]},{"url":"https://www.openwall.com/lists/oss-security/2020/02/24/5","tags":["x_refsource_MISC"]},{"url":"http://www.openwall.com/lists/oss-security/2020/02/26/1","name":"[oss-security] 20200226 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794)","tags":["mailing-list","x_refsource_MLIST"]},{"url":"https://www.debian.org/security/2020/dsa-4634","name":"DSA-4634","tags":["vendor-advisory","x_refsource_DEBIAN"]},{"url":"http://seclists.org/fulldisclosure/2020/Feb/32","name":"20200227 LPE and RCE in OpenSMTPD's default install (CVE-2020-8794)","tags":["mailing-list","x_refsource_FULLDISC"]},{"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","name":"[oss-security] 20200301 Re: LPE and RCE in OpenSMTPD's default install (CVE-2020-8794)","tags":["mailing-list","x_refsource_MLIST"]},{"url":"http://packetstormsecurity.com/files/156633/OpenSMTPD-Out-Of-Bounds-Read-Local-Privilege-Escalation.html","tags":["x_refsource_MISC"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E/","name":"FEDORA-2020-b92d7083ca","tags":["vendor-advisory","x_refsource_FEDORA"]},{"url":"https://usn.ubuntu.com/4294-1/","name":"USN-4294-1","tags":["vendor-advisory","x_refsource_UBUNTU"]},{"url":"http://www.openwall.com/lists/oss-security/2021/05/04/7","name":"[oss-security] 20210504 21Nails: Multiple vulnerabilities in Exim","tags":["mailing-list","x_refsource_MLIST"]}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"mitre","dateUpdated":"2021-05-04T17:06:36.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca"},"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":[{"title":"CVE Program Container","references":[{"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","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2020/02/26/1","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":"https://www.debian.org/security/2020/dsa-4634","name":"DSA-4634","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred"]},{"url":"http://seclists.org/fulldisclosure/2020/Feb/32","name":"20200227 LPE and RCE in OpenSMTPD's default install (CVE-2020-8794)","tags":["mailing-list","x_refsource_FULLDISC","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","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://packetstormsecurity.com/files/156633/OpenSMTPD-Out-Of-Bounds-Read-Local-Privilege-Escalation.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E/","name":"FEDORA-2020-b92d7083ca","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"https://usn.ubuntu.com/4294-1/","name":"USN-4294-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2021/05/04/7","name":"[oss-security] 20210504 21Nails: Multiple vulnerabilities in Exim","tags":["mailing-list","x_refsource_MLIST","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T10:12:10.566Z"}}]}}}