Vulnerability Report

CVE-2016-6595

Title: Docker Denial of Service (DoS)

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2016-6595.

CWE Category CWE-399
Published Date Jan 04, 2017
Modified Date May 06, 2026
Exploit Status Not Found
Score 6.5 CVSS v3.0
Exploit Probability (EPSS)
0.65%

Vulnerability Summary

CVE-2016-6595: The SwarmKit toolkit 1.12.0 for Docker allows remote authenticated users to cause a denial of service (prevention of cluster joins) via a long sequence of join and quit actions. NOTE: the vendor disputes this issue, stating that this sequence is not "removing the state that is left by old nodes. At some point the manager obviously stops being able to accept new nodes, since it runs out of memory. Given that both for Docker swarm and for Docker Swarmkit nodes are *required* to provide a secret token (it's actually the only mode of operation), this means that no adversary can simply join nodes and exhaust manager resources. We can't do anything about a manager running out of memory and not being able to add new legitimate nodes to the system. This is merely a resource provisioning issue, and definitely not a CVE worthy vulnerability.

Impacted Vendors

D
docker 1
R
redhat 1
S
synology 1

Reference Links

http://www.openwall.com/lists/oss-security/2016/08/04/1 http://www.openwall.com/lists/oss-security/2016/09/02/1 http://www.openwall.com/lists/oss-security/2016/09/02/8 http://www.securityfocus.com/bid/92195 http://www.securitytracker.com/id/1036548 http://www.openwall.com/lists/oss-security/2016/08/04/1 http://www.openwall.com/lists/oss-security/2016/09/02/1 http://www.openwall.com/lists/oss-security/2016/09/02/8 http://www.securityfocus.com/bid/92195 http://www.securitytracker.com/id/1036548
CVSS v3.0
Source Entity [email protected]
Severity MEDIUM
6.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:S/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2016-6595 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.