CVE-2016-2119 Information

Description

libcli/smb/smbXcli_base.c in Samba 4.x before 4.2.14 4.3.x before 4.3.11 and 4.4.x before 4.4.5 allows man-in-the-middle attackers to bypass a client-signing protection mechanism and consequently spoof SMB2 and SMB3 servers via the (1) SMB2_SESSION_FLAG_IS_GUEST or (2) SMB2_SESSION_FLAG_IS_NULL flag.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-updates/2016-07/msg00060.html http://rhn.redhat.com/errata/RHSA-2016-1486.html http://rhn.redhat.com/errata/RHSA-2016-1487.html http://rhn.redhat.com/errata/RHSA-2016-1494.html http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html http://www.securityfocus.com/bid/91700 http://www.securitytracker.com/id/1036244 https://security.gentoo.org/glsa/201805-07 https://www.samba.org/samba/security/CVE-2016-2119.html

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.5