CVE-2016-2119

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.80% Top 30%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory samba.org
Affected: n/a n/a
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2016-2119?
CVE-2016-2119 has been scored as a high severity vulnerability.
How to fix CVE-2016-2119?
To fix CVE-2016-2119, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-2119 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-2119 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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