CVE-2021-4235 (Medium) detected in github.com/go-yaml/yaml-v2.0.0+incompatible

[mend-bolt-for-github]

CVE-2021-4235 - Medium Severity Vulnerability

Vulnerable Library - github.com/go-yaml/yaml-v2.0.0+incompatible

YAML support for the Go language.

Library home page: https://proxy.golang.org/github.com/go-yaml/yaml/@v/v2.0.0+incompatible.zip

Dependency Hierarchy:

• ❌ github.com/go-yaml/yaml-v2.0.0+incompatible (Vulnerable Library)

Found in HEAD commit: 2f8b12df3a2bf883fe01937a9f307fb9fba89384

Vulnerability Details

Due to unbounded alias chasing, a maliciously crafted YAML file can cause the system to consume significant system resources. If parsing user input, this may be used as a denial of service vector.

Publish Date: 2022-12-27

URL: CVE-2021-4235

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: 2022-12-27

Fix Resolution: v2.2.3

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