CVE-2021-4240: Insufficient Entropy in PHPServerMon PRNG

CVE-2021-4240 · Severity: low · CVSS 3.1 · Published 2022-11-16

Insufficient Entropy in PHPServerMon PRNG

Technologies: phpservermon/phpservermon (Packagist). Vendors: Packagist.

Quick answers

Is CVE-2021-4240 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2021-4240 being exploited in the wild.
How severe is CVE-2021-4240?
Low severity, with a CVSS score of 3.1, published 16 November 2022.
Which products and versions are affected?
phpservermon/phpservermon (Packagist) ECOSYSTEM:introduced=0,fixed=3.6.0.
Is there a fix for CVE-2021-4240?
Yes. phpservermon/phpservermon (Packagist): upgrade to 3.6.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2021-4240?
Check whether you run phpservermon/phpservermon (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • phpservermon/phpservermon (Packagist): upgrade to 3.6.0 or later
    composer require phpservermon/phpservermon:^3.6.0

Affected products

  • phpservermon/phpservermon (Packagist) ECOSYSTEM:introduced=0,fixed=3.6.0

Identifiers

  • CVE-2021-4240
  • GHSA-97w9-gcc7-vr8g

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.