CVE-2016-2119
Summary
| CVE | CVE-2016-2119 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2016-07-07 15:59:00 UTC |
| Updated | 2026-05-06 22:30:45 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 7.5 HIGH from [email protected]
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Problem Types: CWE-94 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| 2.0 | [email protected] | Primary | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
MediumAuthentication
NoneConfidentiality
PartialIntegrity
PartialAvailability
PartialAV:N/AC:M/Au:N/C:P/I:P/A:P
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Samba CVE-2016-2119 Man in the Middle Security Bypass Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | Third Party Advisory, VDB Entry |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | rhn.redhat.com | Third Party Advisory |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | rhn.redhat.com | Third Party Advisory |
| Oracle Linux Bulletin - July 2016 | af854a3a-2127-422b-91ae-364da2661108 | www.oracle.com | Third Party Advisory |
| openSUSE-SU-2016:1830-1: moderate: Security update for samba | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | Mailing List, Third Party Advisory |
| Samba Lets Remote Users Downgrade SMB Signing Security Protections on the Target System - SecurityTracker | af854a3a-2127-422b-91ae-364da2661108 | www.securitytracker.com | Third Party Advisory, VDB Entry |
| Samba: Multiple vulnerabilities (GLSA 201805-07) — Gentoo Security | af854a3a-2127-422b-91ae-364da2661108 | security.gentoo.org | Third Party Advisory |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | rhn.redhat.com | Third Party Advisory |
| Samba - Security Announcement Archive | af854a3a-2127-422b-91ae-364da2661108 | www.samba.org | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 690339 Free Berkeley Software Distribution (FreeBSD) Security Update for samba (4729c849-4897-11e6-b704-000c292e4fd8)