CVE-2020-15112 (Medium) detected in github.com/etcd-io/etcd-v3.4.3

[mend-for-github-com]

CVE-2020-15112 - Medium Severity Vulnerability

Vulnerable Library - github.com/etcd-io/etcd-v3.4.3

Distributed reliable key-value store for the most critical data of a distributed system

Dependency Hierarchy:

• k8s.io/kubernetes/cmd/cloud-controller-manager/app-v1.18.2-k3s.1 (Root Library)
  • k8s.io/apiserver/pkg/server/options-20f496186c3e8e4d4f12da0794f26cec36df73b2
    • k8s.io/apiserver/pkg/registry/generic-20f496186c3e8e4d4f12da0794f26cec36df73b2
      • github.com/kubernetes/apiserver/pkg/storage-99350e274cedfff11c934b3371447873d98caba6
        • ❌ github.com/etcd-io/etcd-v3.4.3 (Vulnerable Library)

Found in base branch: master

Vulnerability Details

In etcd before versions 3.3.23 and 3.4.10, it is possible to have an entry index greater then the number of entries in the ReadAll method in wal/wal.go. This could cause issues when WAL entries are being read during consensus as an arbitrary etcd consensus participant could go down from a runtime panic when reading the entry.

Publish Date: 2020-08-05

URL: CVE-2020-15112

CVSS 3 Score Details (6.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2020-08-05

Fix Resolution: 3.4.10, 3.3.23