CVE-2021-4097: phpservermon is vulnerable to CRLF Injection

CVE-2021-4097 · Severity: low · CVSS 3 · Published 2021-12-16

phpservermon is vulnerable to CRLF Injection

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

Quick answers

Is CVE-2021-4097 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2021-4097 being exploited in the wild.
How severe is CVE-2021-4097?
Low severity, with a CVSS score of 3, published 16 December 2021.
Which products and versions are affected?
phpservermon/phpservermon (Packagist) ECOSYSTEM:introduced=0,last_affected=3.5.2.
Is there a fix for CVE-2021-4097?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2021-4097?
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.

Affected products

  • phpservermon/phpservermon (Packagist) ECOSYSTEM:introduced=0,last_affected=3.5.2

Identifiers

  • CVE-2021-4097
  • GHSA-8qv8-fq5w-p966

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