CVE-2016-6595: docker Resource Management Errors

Vulnerability summary

CVE-2016-6595 is a medium (CVSS 6.5) Resource Management Errors vulnerability in docker. EPSS estimates a 2.82% chance of exploitation in the next 30 days, higher than 86.3% of scored vulnerabilities.

Timeline

1. 04-01-2017
   PublishedVulnerability first disclosed.
2. 06-08-2024
   Last modifiedVulnerability information updated.

Description

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.

• CWE-399Resource Management ErrorsWeaknesses in this category are related to improper management of system resources.