vulnerability

Ubuntu: (Multiple Advisories) (CVE-2021-21702): PHP vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Feb 15, 2021
Added
Jul 8, 2021
Modified
Apr 16, 2026

Description

In PHP versions 7.3.x below 7.3.27, 7.4.x below 7.4.15 and 8.0.x below 8.0.2, when using SOAP extension to connect to a SOAP server, a malicious SOAP server could return malformed XML data as a response that would cause PHP to access a null pointer and thus cause a crash.

Solutions

ubuntu-pro-upgrade-libapache2-mod-php5ubuntu-pro-upgrade-libapache2-mod-php7-0ubuntu-pro-upgrade-php5-cgiubuntu-pro-upgrade-php5-cliubuntu-pro-upgrade-php5-fpmubuntu-pro-upgrade-php7-0-cgiubuntu-pro-upgrade-php7-0-cliubuntu-pro-upgrade-php7-0-fpmubuntu-upgrade-libapache2-mod-php7-2ubuntu-upgrade-libapache2-mod-php7-4ubuntu-upgrade-php7-2-cgiubuntu-upgrade-php7-2-cliubuntu-upgrade-php7-2-fpmubuntu-upgrade-php7-4-cgiubuntu-upgrade-php7-4-cliubuntu-upgrade-php7-4-fpm
Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.