CVE-2021-29482 (High) detected in github.com/ulikunitz/xz-v0.5.6

[mend-bolt-for-github]

CVE-2021-29482 - High Severity Vulnerability

Vulnerable Library - github.com/ulikunitz/xz-v0.5.6

Pure golang package for reading and writing xz-compressed files

Library home page: https://proxy.golang.org/github.com/ulikunitz/xz/@v/v0.5.6.zip

Dependency Hierarchy:

• github.com/hashicorp/terraform-plugin-sdk/helper/schema-v1.2.0 (Root Library)
  • github.com/hashicorp/terraform-plugin-sdk/terraform-v1.2.0
    • github.com/hashicorp/terraform-plugin-sdk/internal/moduledeps-v1.2.0
      • github.com/hashicorp/terraform-plugin-sdk/internal/plugin/discovery-v1.2.0
        • github.com/hashicorp/go-getter-v1.4.0
          • ❌ github.com/ulikunitz/xz-v0.5.6 (Vulnerable Library)

Vulnerability Details

xz is a compression and decompression library focusing on the xz format completely written in Go. The function readUvarint used to read the xz container format may not terminate a loop provide malicous input. The problem has been fixed in release v0.5.8. As a workaround users can limit the size of the compressed file input to a reasonable size for their use case. The standard library had recently the same issue and got the CVE-2020-16845 allocated.

Publish Date: 2021-04-28

URL: CVE-2021-29482

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • 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

Origin: GHSA-25xm-hr59-7c27

Release Date: 2021-04-28

Fix Resolution: v0.5.8

---

Step up your Open Source Security Game with Mend here