NULL Pointer Dereference Affecting php7.4 package, versions <7.4.3-4ubuntu2.5


Severity

Recommended
low

Based on Ubuntu security rating

    Threat Intelligence

    EPSS
    1.23% (86th percentile)

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  • Snyk ID SNYK-UBUNTU2004-PHP74-1124668
  • published 5 Jul 2021
  • disclosed 15 Feb 2021

How to fix?

Upgrade Ubuntu:20.04 php7.4 to version 7.4.3-4ubuntu2.5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php7.4 package and not the php7.4 package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 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
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NVD

7.5 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
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SUSE

7.5 high
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Red Hat

7.5 high