Improper Input Validation Affecting php73-common package, versions <0:7.3.29-1.30.amzn1


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.09% (42nd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Improper Input Validation vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-AMZN201803-PHP73COMMON-1726102
  • published27 Sept 2021
  • disclosed4 Oct 2021

Introduced: 27 Sep 2021

CVE-2021-21705  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 php73-common to version 0:7.3.29-1.30.amzn1 or higher.
This issue was patched in ALAS-2021-1532.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php73-common package and not the php73-common package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using URL validation functionality via filter_var() function with FILTER_VALIDATE_URL parameter, an URL with invalid password field can be accepted as valid. This can lead to the code incorrectly parsing the URL and potentially leading to other security implications - like contacting a wrong server or making a wrong access decision.

CVSS Scores

version 3.1