Out-of-bounds Read Affecting php8 package, versions <8.0.25-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.09% (42nd percentile)

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  • Snyk IDSNYK-ALPINE316-PHP8-3063741
  • published26 Oct 2022
  • disclosed14 Nov 2022

Introduced: 26 Oct 2022

CVE-2022-31630  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Alpine:3.16 php8 to version 8.0.25-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php8 package and not the php8 package as distributed by Alpine. See How to fix? for Alpine:3.16 relevant fixed versions and status.

In PHP versions prior to 7.4.33, 8.0.25 and 8.1.12, when using imageloadfont() function in gd extension, it is possible to supply a specially crafted font file, such as if the loaded font is used with imagechar() function, the read outside allocated buffer will be used. This can lead to crashes or disclosure of confidential information.

CVSS Scores

version 3.1