// For flags

CVE-2016-6595

 

Severity Score

6.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

** DISPUTADA ** El SwarmKit toolkit 1.12.0 para Docker permite a usuarios remotos autenticados provocar una denegación de servicio (prevención de entradas de cluster) a través de una secuencia larga de acciones de entrada y salida. NOTA: el vendedor cuestiona este problema, afirmando que esta secuencia no "elimina el estado que dejan los nodos anteriores. En algún momento el administrador obviamente deja de ser capaz de aceptar nodos nuevos, ya que se le acaba la memoria. Ya que los nodos tanto de Docker swarm y Docker Swarmkit son "necesarios* para proporcionar un token secreto (en realidad es el único modo de operación), esto significa que ningún adversario puede unir simplemente los nodos y agotar los recursos del administrador. No podemos hacer nada acerca de la pérdida de memoria de un administrador y la incapacidad de añadir nuevos nodos legítimos al sistema. Esto es simplemente un problema de aprovisionamiento de recursos y no una vulnerabilidad merecedora de una CVE".

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2016-08-03 CVE Reserved
  • 2017-01-04 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-399: Resource Management Errors
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Docker
Search vendor "Docker"
Docker
Search vendor "Docker" for product "Docker"
1.12.0
Search vendor "Docker" for product "Docker" and version "1.12.0"
-
Affected