medium
5.9
CWE
254
Advisory Published
Updated

CVE-2016-2114

First published: Mon Apr 25 2016(Updated: )

The SMB1 protocol implementation in Samba 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not recognize the "server signing = mandatory" setting, which allows man-in-the-middle attackers to spoof SMB servers by modifying the client-server data stream.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Samba Samba=4.0.0
Samba Samba=4.0.1
Samba Samba=4.0.2
Samba Samba=4.0.3
Samba Samba=4.0.4
Samba Samba=4.0.5
Samba Samba=4.0.6
Samba Samba=4.0.7
Samba Samba=4.0.8
Samba Samba=4.0.9
Samba Samba=4.0.10
Samba Samba=4.0.11
Samba Samba=4.0.12
Samba Samba=4.0.13
Samba Samba=4.0.14
Samba Samba=4.0.15
Samba Samba=4.0.16
Samba Samba=4.0.17
Samba Samba=4.0.18
Samba Samba=4.0.19
Samba Samba=4.0.20
Samba Samba=4.0.21
Samba Samba=4.0.22
Samba Samba=4.0.23
Samba Samba=4.0.24
Samba Samba=4.0.25
Samba Samba=4.0.26
Samba Samba=4.1.0
Samba Samba=4.1.1
Samba Samba=4.1.2
Samba Samba=4.1.3
Samba Samba=4.1.4
Samba Samba=4.1.5
Samba Samba=4.1.6
Samba Samba=4.1.7
Samba Samba=4.1.8
Samba Samba=4.1.9
Samba Samba=4.1.10
Samba Samba=4.1.11
Samba Samba=4.1.12
Samba Samba=4.1.13
Samba Samba=4.1.14
Samba Samba=4.1.15
Samba Samba=4.1.16
Samba Samba=4.1.17
Samba Samba=4.1.18
Samba Samba=4.1.19
Samba Samba=4.1.20
Samba Samba=4.1.21
Samba Samba=4.1.22
Samba Samba=4.1.23
Samba Samba=4.2.0-rc1
Samba Samba=4.2.0-rc2
Samba Samba=4.2.0-rc3
Samba Samba=4.2.0-rc4
Samba Samba=4.2.1
Samba Samba=4.2.2
Samba Samba=4.2.3
Samba Samba=4.2.4
Samba Samba=4.2.5
Samba Samba=4.2.6
Samba Samba=4.2.7
Samba Samba=4.2.8
Samba Samba=4.2.9
Samba Samba=4.3.0
Samba Samba=4.3.1
Samba Samba=4.3.2
Samba Samba=4.3.3
Samba Samba=4.3.4
Samba Samba=4.3.5
Samba Samba=4.3.6
Samba Samba=4.4.0
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=15.10
Canonical Ubuntu Linux=16.04

Remedy

https://www.samba.org/samba/security/CVE-2016-2114.html

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