NULL Pointer Dereference Affecting php:7.4/php-pecl-zip package, versions <0:1.18.2-1.module_el8.6.0+2750+78feabcb


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
1.24% (87th 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 NULL Pointer Dereference vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-ALMALINUX8-PHP-5632188
  • published28 May 2023
  • disclosed9 Nov 2021

Introduced: 9 Nov 2021

CVE-2021-21702  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 php:7.4/php-pecl-zip to version 0:1.18.2-1.module_el8.6.0+2750+78feabcb or higher.
This issue was patched in ALSA-2021:4213.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php:7.4/php-pecl-zip package and not the php:7.4/php-pecl-zip package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1