CVE-2021-21705

CVE Details

Release Date:

2021-10-04

Description

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.

See more information about CVE-2021-21705 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	5.3	Base Metrics:	AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Access Vector:	Network	Attack Complexity:	Low
Privileges Required:	None	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	None
Integrity Impact:	Low	Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (libzip)	ELSA-2022-1935	2022-05-17
Oracle Linux version 8 (php)	ELSA-2022-1935	2022-05-17
Oracle Linux version 8 (php-pear)	ELSA-2022-1935	2022-05-17
Oracle Linux version 8 (php-pecl-apcu)	ELSA-2022-1935	2022-05-17
Oracle Linux version 8 (php-pecl-rrd)	ELSA-2022-1935	2022-05-17
Oracle Linux version 8 (php-pecl-xdebug)	ELSA-2022-1935	2022-05-17
Oracle Linux version 8 (php-pecl-zip)	ELSA-2022-1935	2022-05-17

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team