KubeEdge CloudCore Router memory exhaustion

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• linuxfoundation kubeedgebefore 1.9.4
• linuxfoundation kubeedge1.10.0 and later · before 1.10.2
• linuxfoundation kubeedge1.11.0 and later · before 1.11.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

• kubeedge kubeedge

  • < 1.9.4, >= 1.10.0, < 1.10.2, = 1.11.0affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2022-31073KubeEdge Edge ServiceBus module DoS
  31Monitor
• CVE-2022-31080KubeEdge Websocket Client in package Viaduct: DoS from large response message
  26Monitor
• CVE-2022-31079KubeEdge Cloud Stream and Edge Stream DoS from large stream message
  26Monitor
• CVE-2022-31075KubeEdge DoS when signing the CSR from EdgeCore
  26Monitor
• CVE-2022-31074KubeEdge Cloud AdmissionController component DoS
  26Monitor
• CVE-2022-31077Malicious response from KubeEdge can crash CSI Driver controller server
  22Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1function expand(node) {2  return node.children.map(expand);3}

1const MAX_DEPTH = 32;2function expand(node, depth = 0) {3  if (depth > MAX_DEPTH) throw new Error("too deep");4  return node.children.map((c) => expand(c, depth + 1));5}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.