CVE-2021-27378 – rand_core

Package

Manager: cargo
Name: rand_core
Vulnerable Version: >=0.6.0 <0.6.2

Severity

Level: Critical

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS: 0.00468 pctl0.63581

Details

Incorrect check on buffer length in rand_core 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. The vulnerability was introduced in v0.6.0. The advisory doesn't apply to earlier minor version numbers. Because read_u32_into and read_u64_into mishandle certain buffer-length checks, a random number generator may be seeded with too little data.

Metadata

Created: 2021-08-25T20:52:16Z
Modified: 2022-07-13T20:03:17Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/08/GHSA-w7j2-35mf-95p7/GHSA-w7j2-35mf-95p7.json
CWE IDs: ["CWE-330"]
Alternative ID: GHSA-w7j2-35mf-95p7
Finding: F034
Auto approve: 1