CVE-2016-2114
Summary
| CVE | CVE-2016-2114 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2016-04-25 00:59:05 UTC |
| Updated | 2026-05-06 22:30:45 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.0 5.9 MEDIUM from [email protected]
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Problem Types: CWE-254 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.0 | [email protected] | Primary | 5.9 | MEDIUM | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
| 2.0 | [email protected] | Primary | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
HighAvailability
NoneCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
MediumAuthentication
NoneConfidentiality
NoneIntegrity
PartialAvailability
NoneAV:N/AC:M/Au:N/C:N/I:P/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Canonical | Ubuntu Linux | 14.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 15.10 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 16.04 | All | All | All |
| Application | Samba | Samba | 4.0.0 | All | All | All |
| Application | Samba | Samba | 4.0.1 | All | All | All |
| Application | Samba | Samba | 4.0.10 | All | All | All |
| Application | Samba | Samba | 4.0.11 | All | All | All |
| Application | Samba | Samba | 4.0.12 | All | All | All |
| Application | Samba | Samba | 4.0.13 | All | All | All |
| Application | Samba | Samba | 4.0.14 | All | All | All |
| Application | Samba | Samba | 4.0.15 | All | All | All |
| Application | Samba | Samba | 4.0.16 | All | All | All |
| Application | Samba | Samba | 4.0.17 | All | All | All |
| Application | Samba | Samba | 4.0.18 | All | All | All |
| Application | Samba | Samba | 4.0.19 | All | All | All |
| Application | Samba | Samba | 4.0.2 | All | All | All |
| Application | Samba | Samba | 4.0.20 | All | All | All |
| Application | Samba | Samba | 4.0.21 | All | All | All |
| Application | Samba | Samba | 4.0.22 | All | All | All |
| Application | Samba | Samba | 4.0.23 | All | All | All |
| Application | Samba | Samba | 4.0.24 | All | All | All |
| Application | Samba | Samba | 4.0.25 | All | All | All |
| Application | Samba | Samba | 4.0.26 | All | All | All |
| Application | Samba | Samba | 4.0.3 | All | All | All |
| Application | Samba | Samba | 4.0.4 | All | All | All |
| Application | Samba | Samba | 4.0.5 | All | All | All |
| Application | Samba | Samba | 4.0.6 | All | All | All |
| Application | Samba | Samba | 4.0.7 | All | All | All |
| Application | Samba | Samba | 4.0.8 | All | All | All |
| Application | Samba | Samba | 4.0.9 | All | All | All |
| Application | Samba | Samba | 4.1.0 | All | All | All |
| Application | Samba | Samba | 4.1.1 | All | All | All |
| Application | Samba | Samba | 4.1.10 | All | All | All |
| Application | Samba | Samba | 4.1.11 | All | All | All |
| Application | Samba | Samba | 4.1.12 | All | All | All |
| Application | Samba | Samba | 4.1.13 | All | All | All |
| Application | Samba | Samba | 4.1.14 | All | All | All |
| Application | Samba | Samba | 4.1.15 | All | All | All |
| Application | Samba | Samba | 4.1.16 | All | All | All |
| Application | Samba | Samba | 4.1.17 | All | All | All |
| Application | Samba | Samba | 4.1.18 | All | All | All |
| Application | Samba | Samba | 4.1.19 | All | All | All |
| Application | Samba | Samba | 4.1.2 | All | All | All |
| Application | Samba | Samba | 4.1.20 | All | All | All |
| Application | Samba | Samba | 4.1.21 | All | All | All |
| Application | Samba | Samba | 4.1.22 | All | All | All |
| Application | Samba | Samba | 4.1.23 | All | All | All |
| Application | Samba | Samba | 4.1.3 | All | All | All |
| Application | Samba | Samba | 4.1.4 | All | All | All |
| Application | Samba | Samba | 4.1.5 | All | All | All |
| Application | Samba | Samba | 4.1.6 | All | All | All |
| Application | Samba | Samba | 4.1.7 | All | All | All |
| Application | Samba | Samba | 4.1.8 | All | All | All |
| Application | Samba | Samba | 4.1.9 | All | All | All |
| Application | Samba | Samba | 4.2.0 | rc1 | All | All |
| Application | Samba | Samba | 4.2.0 | rc2 | All | All |
| Application | Samba | Samba | 4.2.0 | rc3 | All | All |
| Application | Samba | Samba | 4.2.0 | rc4 | All | All |
| Application | Samba | Samba | 4.2.1 | All | All | All |
| Application | Samba | Samba | 4.2.2 | All | All | All |
| Application | Samba | Samba | 4.2.3 | All | All | All |
| Application | Samba | Samba | 4.2.4 | All | All | All |
| Application | Samba | Samba | 4.2.5 | All | All | All |
| Application | Samba | Samba | 4.2.6 | All | All | All |
| Application | Samba | Samba | 4.2.7 | All | All | All |
| Application | Samba | Samba | 4.2.8 | All | All | All |
| Application | Samba | Samba | 4.2.9 | All | All | All |
| Application | Samba | Samba | 4.3.0 | All | All | All |
| Application | Samba | Samba | 4.3.1 | All | All | All |
| Application | Samba | Samba | 4.3.2 | All | All | All |
| Application | Samba | Samba | 4.3.3 | All | All | All |
| Application | Samba | Samba | 4.3.4 | All | All | All |
| Application | Samba | Samba | 4.3.5 | All | All | All |
| Application | Samba | Samba | 4.3.6 | All | All | All |
| Application | Samba | Samba | 4.4.0 | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Samba - Security Announcement Archive | af854a3a-2127-422b-91ae-364da2661108 | www.samba.org | Patch, Vendor Advisory |
| Badlock Bug | af854a3a-2127-422b-91ae-364da2661108 | badlock.org | |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | rhn.redhat.com | |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | rhn.redhat.com | |
| Broadcom Support Portal | af854a3a-2127-422b-91ae-364da2661108 | bto.bluecoat.com | |
| USN-2950-1: Samba vulnerabilities | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| Samba - Release Notes Archive | af854a3a-2127-422b-91ae-364da2661108 | www.samba.org | |
| [SECURITY] Fedora 23 Update: samba-4.3.8-0.fc23 | af854a3a-2127-422b-91ae-364da2661108 | lists.fedoraproject.org | |
| USN-2950-2: libsoup update | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| Samba: Multiple vulnerabilities (GLSA 201612-47) — Gentoo security | af854a3a-2127-422b-91ae-364da2661108 | security.gentoo.org | |
| USN-2950-5: Samba regression | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| The Slackware Linux Project: Slackware Security Advisories | af854a3a-2127-422b-91ae-364da2661108 | www.slackware.com | |
| [SECURITY] Fedora 22 Update: samba-4.2.11-0.fc22 | af854a3a-2127-422b-91ae-364da2661108 | lists.fedoraproject.org | |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | rhn.redhat.com | |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | rhn.redhat.com | |
| [security-announce] openSUSE-SU-2016:1107-1: important: Security update | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| Oracle Linux Bulletin - April 2016 | af854a3a-2127-422b-91ae-364da2661108 | www.oracle.com | |
| USN-2950-3: Samba regressions | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| Samba Multiple Flaws Let Remote Users Hijack Connections, Obtain Potentially Sensitive Information, and Deny Service - SecurityTracker | af854a3a-2127-422b-91ae-364da2661108 | www.securitytracker.com | |
| Samba - Latest News | af854a3a-2127-422b-91ae-364da2661108 | www.samba.org | |
| USN-2950-4: Samba regressions | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| [security-announce] openSUSE-SU-2016:1106-1: important: Security update | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| [SECURITY] Fedora 24 Update: samba-4.4.2-1.fc24 | af854a3a-2127-422b-91ae-364da2661108 | lists.fedoraproject.org | |
| Samba CVE-2016-2114 Remote Security Bypass Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | |
| Debian -- Security Information -- DSA-3548-1 samba | af854a3a-2127-422b-91ae-364da2661108 | www.debian.org | |
| 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.
There are currently no legacy QID mappings associated with this CVE.