CVE-2017-12151

HighCVSS 7.4/10Last modified Jun 17, 2026

Description

A flaw was found in the way samba client before samba 4.4.16, samba 4.5.14 and samba 4.6.8 used encryption with the max protocol set as SMB3. The connection could lose the requirement for signing and encrypting to any DFS redirects, allowing an attacker to read or alter the contents of the connection via a man-in-the-middle attack.

Metrics

CVSS 3.0 7.4/10CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-300 CWE-310

Affected software

Vendor	Product	Versions
Samba	samba	4.4.16; 4.5.14; 4.6.8

References

http://www.securityfocus.com/bid/100917Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039401Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2017:2790Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2858Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12151Issue Tracking, Third Party Advisory
https://security.netapp.com/advisory/ntap-20170921-0001/Third Party Advisory
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03817en_usThird Party Advisory
https://www.debian.org/security/2017/dsa-3983Third Party Advisory
https://www.samba.org/samba/security/CVE-2017-12151.htmlMitigation, Vendor Advisory
http://www.securityfocus.com/bid/100917Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039401Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2017:2790Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2858Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12151Issue Tracking, Third Party Advisory
https://security.netapp.com/advisory/ntap-20170921-0001/Third Party Advisory
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03817en_usThird Party Advisory
https://www.debian.org/security/2017/dsa-3983Third Party Advisory
https://www.samba.org/samba/security/CVE-2017-12151.htmlMitigation, Vendor Advisory

Timeline

Published: Jul 27, 2018
Last modified: Jun 17, 2026
NVD status: Modified

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