NULL Pointer Dereference Affecting php:7.4/libzip-tools package, versions <0:1.6.1-1.module_el8.6.0+2750+78feabcb


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
1.24% (87th percentile)

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  • Snyk IDSNYK-ALMALINUX8-PHP-5632134
  • 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/libzip-tools to version 0:1.6.1-1.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/libzip-tools package and not the php:7.4/libzip-tools 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