CVE-2016-2119
HIGH severity · CVSS 7.5 · Code injection
7.5CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionRequired
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)3%
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://lists.opensuse.org/opensuse-updates/2016-07/msg00060.htmlAdvisory
- http://rhn.redhat.com/errata/RHSA-2016-1486.htmlAdvisory
- http://rhn.redhat.com/errata/RHSA-2016-1487.htmlAdvisory
- http://rhn.redhat.com/errata/RHSA-2016-1494.htmlAdvisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlAdvisory
- http://www.securityfocus.com/bid/91700Advisory
- http://www.securitytracker.com/id/1036244Advisory
- https://security.gentoo.org/glsa/201805-07Advisory