CVE-2021-27378 (High) detected in rand_core-0.3.1.crate, rand_core-0.4.0.crate

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CVE-2021-27378 - High Severity Vulnerability

Vulnerable Libraries - rand_core-0.3.1.crate, rand_core-0.4.0.crate

rand_core-0.3.1.crate

Core random number generator traits and tools for implementation.

Library home page: https://crates.io/api/v1/crates/rand_core/0.3.1/download

Dependency Hierarchy:

• hyper-rustls-0.16.1.crate (Root Library)
  • hyper-0.12.25.crate
    • tokio-tcp-0.1.3.crate
      • tokio-reactor-0.1.9.crate
        • parking_lot-0.7.1.crate
          • parking_lot_core-0.4.0.crate
            • rand-0.6.5.crate
              • rand_os-0.1.3.crate
                • rdrand-0.4.0.crate
                  • ❌ rand_core-0.3.1.crate (Vulnerable Library)

rand_core-0.4.0.crate

Core random number generator traits and tools for implementation.

Library home page: https://crates.io/api/v1/crates/rand_core/0.4.0/download

Dependency Hierarchy:

• hyper-rustls-0.16.1.crate (Root Library)
  • hyper-0.12.25.crate
    • tokio-tcp-0.1.3.crate
      • tokio-reactor-0.1.9.crate
        • parking_lot-0.7.1.crate
          • parking_lot_core-0.4.0.crate
            • rand-0.6.5.crate
              • ❌ rand_core-0.4.0.crate (Vulnerable Library)

Vulnerability Details

An issue was discovered in the rand_core crate before 0.6.2 for Rust. Because read_u32_into and read_u64_into mishandle certain buffer-length checks, a random number generator may be seeded with too little data.

Publish Date: 2021-02-18

URL: CVE-2021-27378

CVSS 3 Score Details (9.8)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://rustsec.org/advisories/RUSTSEC-2021-0023.html

Release Date: 2021-02-18

Fix Resolution: rand_core - 0.6.2