CVE-2017-12151

HIGH
7.4
CVSS Score
Published: July 27, 2018 at 12:00 PM UTC
Updated: June 17, 2026 at 01:02 AM UTC
8 products affected across 4 vendorsDebian LinuxEnterprise LinuxEnterprise Linux Desktop

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Severity
HIGH7.4
Exploit prediction
EPSS 4%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.4.164.5.0 ≤ v < 4.5.144.6.0 ≤ v < 4.6.84.4.164.5.144.6.8
Affected range stops below 4.4.16, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.5.14, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.6.8, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (9)

VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/100917
VDB Entryx_refsource_SECTRACKThird Party Advisory
http://www.securitytracker.com/id/1039401
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2017:2790
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2017:2858
x_refsource_CONFIRMIssue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12151
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
https://www.debian.org/security/2017/dsa-3983

CVSS

7.4HIGHredhat
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-300CWE-310

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