Use After Free Affecting php7.4 package, versions <7.4.3-4ubuntu2.5


Severity

Recommended
0.0
low
0
10

Based on Ubuntu security rating

    Threat Intelligence

    EPSS
    0.06% (26th percentile)

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  • Snyk ID SNYK-UBUNTU2004-PHP74-607888
  • published 19 Aug 2020
  • disclosed 9 Sep 2020

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 7.2.x below 7.2.33, 7.3.x below 7.3.21 and 7.4.x below 7.4.9, while processing PHAR files using phar extension, phar_parse_zipfile could be tricked into accessing freed memory, which could lead to a crash or information disclosure.

CVSS Scores

version 3.1
Expand this section

NVD

3.6 low
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    None
  • Availability (A)
    Low
Expand this section

SUSE

4 medium
Expand this section

Red Hat

3.6 low