{"schema_version":"1.7.5","id":"CVE-2018-1139","published":"2018-08-22T14:29:00.363Z","modified":"2026-07-08T05:52:12.366552116Z","related":["SUSE-SU-2018:2318-1","openSUSE-SU-2024:11365-1"],"details":"A flaw was found in the way samba before 4.7.9 and 4.8.4 allowed the use of weak NTLMv1 authentication even when NTLMv1 was explicitly disabled. A man-in-the-middle attacker could use this flaw to read the credential and other details passed between the samba server and client.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/samba-team/samba","events":[{"introduced":"d1e69845e28c20a491c4cd60c712b46ddfcb9dc0"},{"fixed":"3e5da7e8878a78da96fbdccd05953c791560a6b5"},{"introduced":"5a9d09fee44052e18ce241ec28f78498d2e20d73"},{"fixed":"626c489c2c879aef8b82efe9f7e832cca0183f4d"}],"database_specific":{"cpe":"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.7.0"},{"fixed":"4.7.9"},{"introduced":"4.8.0"},{"fixed":"4.8.4"}],"source":"CPE_RANGE"}}],"versions":["samba-4.7.8","ldb-1.3.5","samba-4.8.3","ldb-1.3.4","samba-4.8.2","ldb-1.3.3","samba-4.8.1","samba-4.7.7","samba-4.8.0","samba-4.7.5","samba-4.7.4","ldb-1.2.3","samba-4.7.2","samba-4.7.1","samba-4.7.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-1139.json"}}],"references":[{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/105084"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:2612"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:2613"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:3056"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202003-52"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20180814-0001/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3738-1/"},{"type":"ADVISORY","url":"https://www.samba.org/samba/security/CVE-2018-1139.html"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1139"}],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"],"extracted_events":[{"introduced":"14.04"},{"last_affected":"14.04"},{"introduced":"16.04"},{"last_affected":"16.04"},{"introduced":"18.04"},{"last_affected":"18.04"}],"source":"CPE_STRING","vendor_product":"canonical:ubuntu_linux"},{"cpes":["cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"7.0"},{"last_affected":"7.0"}],"source":"CPE_STRING","vendor_product":"redhat:enterprise_linux_desktop"},{"cpes":["cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"7.0"},{"last_affected":"7.0"}],"source":"CPE_STRING","vendor_product":"redhat:enterprise_linux_server"},{"cpes":["cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"7.0"},{"last_affected":"7.0"}],"source":"CPE_STRING","vendor_product":"redhat:enterprise_linux_workstation"}]},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}