High severity8.1NVD Advisory· Published Aug 22, 2018· Updated Jun 17, 2026
CVE-2018-1139
CVE-2018-1139
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
12cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*range: >=4.7.0,<4.7.9
- (no CPE)range: <4.7.9, <4.8.4
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*+ 2 more
- 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:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
- osv-coords3 versionspkg:rpm/opensuse/samba&distro=openSUSE%20Tumbleweedpkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015
< 4.14.6+git.182.2205d5224e3-1.1+ 2 more
- (no CPE)range: < 4.14.6+git.182.2205d5224e3-1.1
- (no CPE)range: < 4.7.8+git.86.94b6d10f7dd-4.15.1
- (no CPE)range: < 4.7.8+git.86.94b6d10f7dd-4.15.1
- The Samba Team/sambav5Range: before 4.7.9
Patches
Vulnerability mechanics
References
9- www.securityfocus.com/bid/105084nvdThird Party AdvisoryVDB Entry
- access.redhat.com/errata/RHSA-2018:2612nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:2613nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:3056nvdThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
- security.gentoo.org/glsa/202003-52nvdThird Party Advisory
- security.netapp.com/advisory/ntap-20180814-0001/nvdThird Party Advisory
- usn.ubuntu.com/3738-1/nvdThird Party Advisory
- www.samba.org/samba/security/CVE-2018-1139.htmlnvdThird Party Advisory
News mentions
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