Skip to main content

Samba CVE-2016-2113

HIGH
Cryptographic Issues (CWE-310)
2016-04-25 secalert@redhat.com
Information Disclosure Canonical Samba Ubuntu Linux
7.4
CVSS 3.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
CWE-310
OWASP Top 10:2025
A04:2025 - Cryptographic Failures
ASVS 5.0
V11 - Cryptography Cryptographic controls
Impact

CVSS score of 7.4 (HIGH). Attack characteristics: network attack vector, high complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 4.20%.
Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 4.2% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

Samba 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not verify X.509 certificates from TLS servers, which allows man-in-the-middle attackers to spoof LDAPS and HTTPS servers and. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, no authentication required.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Sign in to check
Technical ContextAI · show details

This vulnerability is classified under CWE-310. Samba 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not verify X.509 certificates from TLS servers, which allows man-in-the-middle attackers to spoof LDAPS and HTTPS servers and obtain sensitive information via a crafted certificate. Affected products include: Samba, Canonical Ubuntu Linux. Version information: before 4.2.11.

Know when Samba gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources
Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 7.4 HIGH
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

DescriptionCVE.org

Samba 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not verify X.509 certificates from TLS servers, which allows man-in-the-middle attackers to spoof LDAPS and HTTPS servers and obtain sensitive information via a crafted certificate.

Threat Intelligence Overview

EPSS Score
4.2%
Top 11% exploitable
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 4.2%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

41
Low Medium High Critical
KEV: 0
EPSS: +4
CVSS: +37
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:a:samba:samba:4.0.0:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.1:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.2:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.3:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.4:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.5:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.6:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.7:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.8:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.9:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.10:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.11:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.12:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.13:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.14:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.15:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.16:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.17:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.18:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:4.0.19:*:*:*:*:*:*:*
+ 55 more

More in Samba

View all
CVE-2017-7494 CRITICAL POC
9.8 May 30

Samba since version 3.5.0 and before 4.6.4, 4.5.10 and 4.4.14 is vulnerable to remote code execution vulnerability, allo
CVE-2012-1182 CRITICAL POC
10.0 Apr 10

The RPC code generator in Samba 3.x before 3.4.16, 3.5.x before 3.5.14, and 3.6.x before 3.6.4 does not implement valida
CVE-2015-0240 CRITICAL POC
10.0 Feb 24

The Netlogon server implementation in smbd in Samba 3.5.x and 3.6.x before 3.6.25, 4.0.x before 4.0.25, 4.1.x before 4.1
CVE-2016-2118 HIGH POC
7.5 Apr 12

The MS-SAMR and MS-LSAD protocol implementations in Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x befor
CVE-2013-4124 MEDIUM POC
5.0 Aug 06

Integer overflow in the read_nttrans_ea_list function in nttrans.c in smbd in Samba 3.x before 3.5.22, 3.6.x before 3.6.
CVE-2014-3560 HIGH
7.9 Aug 06

NetBIOS name services daemon (nmbd) in Samba 4.0.x before 4.0.21 and 4.1.x before 4.1.11 allows remote attackers to exec
CVE-2012-0870 HIGH
7.9 Feb 23

Heap-based buffer overflow in process.c in smbd in Samba 3.0, as used in the file-sharing service on the BlackBerry Play
CVE-2015-7540 HIGH
7.5 Dec 29

The LDAP server in the AD domain controller in Samba 4.x before 4.1.22 does not check return values to ensure successful
CVE-2017-15275 HIGH
7.5 Nov 27

Samba before 4.7.3 might allow remote attackers to obtain sensitive information by leveraging failure of the server to c
CVE-2017-14746 CRITICAL
9.8 Nov 27

Use-after-free vulnerability in Samba 4.x before 4.7.3 allows remote attackers to execute arbitrary code via a crafted S
CVE-2024-12085 HIGH POC
7.5 Jan 14

A flaw was found in rsync which could be triggered when rsync compares file checksums. Rated high severity (CVSS 7.5), t
CVE-2015-5252 HIGH POC
7.2 Dec 29

vfs.c in smbd in Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3, when share names with cert

Same weakness CWE-310 – Cryptographic Issues

View all
CVE-2015-0204 MEDIUM POC
4.3
CVE-2015-4000 LOW POC
3.7
CVE-2014-3566 LOW POC
3.4
CVE-2014-8684 CRITICAL POC
9.8
CVE-2012-1803 HIGH POC
8.5
CVE-2013-4787 CRITICAL POC
9.3
CVE-2014-8686 CRITICAL POC
9.8
CVE-2013-0137 CRITICAL
10.0

Same technique Information Disclosure

View all
CVE-2019-2725 CRITICAL POC
9.8
CVE-2021-34523 CRITICAL POC
9.0
CVE-2013-2251 CRITICAL POC
9.8
CVE-2017-5638 CRITICAL POC
9.8
CVE-2025-24813 CRITICAL POC
9.8
CVE-2025-68613 HIGH POC
8.8
CVE-2015-1701 HIGH POC
7.8
CVE-2017-0147 HIGH POC
7.5

References

Advisories & patches
PATCH https://www.samba.org/samba/security/CVE-2016-2113.html REF http://badlock.org/ REF http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.html REF http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.html REF http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.html REF http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00020.html REF http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00021.html REF http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00022.html REF http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00023.html REF http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00024.html REF http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html REF http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html REF http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html REF http://rhn.redhat.com/errata/RHSA-2016-0612.html REF http://rhn.redhat.com/errata/RHSA-2016-0614.html REF http://rhn.redhat.com/errata/RHSA-2016-0618.html REF http://rhn.redhat.com/errata/RHSA-2016-0620.html REF http://www.debian.org/security/2016/dsa-3548 REF http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html REF http://www.securitytracker.com/id/1035533 REF http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.458012 REF http://www.ubuntu.com/usn/USN-2950-1 REF http://www.ubuntu.com/usn/USN-2950-2 REF http://www.ubuntu.com/usn/USN-2950-3 REF http://www.ubuntu.com/usn/USN-2950-4 REF http://www.ubuntu.com/usn/USN-2950-5 REF https://bto.bluecoat.com/security-advisory/sa122 REF https://security.gentoo.org/glsa/201612-47 REF https://www.samba.org/samba/history/samba-4.2.10.html REF https://www.samba.org/samba/latest_news.html#4.4.2

Search Externally

GitHub PoC Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy