CVE-2020-7066

CVE Details

Release Date:	2020-04-01
Impact:	None	What is this?

Description

In PHP versions 7.2.x below 7.2.29, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using get_headers() with user-supplied URL, if the URL contains zero (\0) character, the URL will be silently truncated at it. This may cause some software to make incorrect assumptions about the target of the get_headers() and possibly send some information to a wrong server.

See more information about CVE-2020-7066 from MITRE CVE dictionary and NIST NVD

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

CVSS v3 metrics

Base Score:	4.3
Vector String:	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Version:	3.0
Attack Vector:	Network
Attack Complexity:	Low
Privileges Required:	None
User Interaction:	Required
Scope:	Unchanged
Confidentiality Impact:	Low
Integrity Impact:	None
Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (libzip)	ELSA-2020-3662	2020-09-09
Oracle Linux version 8 (php)	ELSA-2020-3662	2020-09-09
Oracle Linux version 8 (php-pear)	ELSA-2020-3662	2020-09-09
Oracle Linux version 8 (php-pecl-apcu)	ELSA-2020-3662	2020-09-09
Oracle Linux version 8 (php-pecl-rrd)	ELSA-2020-3662	2020-09-09
Oracle Linux version 8 (php-pecl-xdebug)	ELSA-2020-3662	2020-09-09
Oracle Linux version 8 (php-pecl-zip)	ELSA-2020-3662	2020-09-09