CVE Vulnerabilities

CVE-2021-3692

Use of Predictable Algorithm in Random Number Generator

Published: Aug 10, 2021 | Modified: Nov 21, 2024
CVSS 3.x
5.3
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

yii2 is vulnerable to Use of Predictable Algorithm in Random Number Generator

Weakness

The device uses an algorithm that is predictable and generates a pseudo-random number.

Affected Software

Name Vendor Start Version End Version
Yii Yiiframework 2.0.0 (including) 2.0.43 (excluding)

Extended Description

Pseudo-random number generator algorithms are predictable because their registers have a finite number of possible states, which eventually lead to repeating patterns. As a result, pseudo-random number generators (PRNGs) can compromise their randomness or expose their internal state to various attacks, such as reverse engineering or tampering.

Potential Mitigations

References