CVE-2017-12151

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.

• CWE-300
• CWE-310

• 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

Published

Jul 27, 2018

Last Modified

Jun 17, 2026

Status

Modified

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