VulnerabilityModified

CVE-2022-31630

This can lead to crashes or disclosure of confidential information.

HIGH 7.1EPSS 2.20%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.20%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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 3.1: 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
EPSS: 2.20% probability · 82th percentile
CISA KEV: Not listed
Weakness: CWE-131, CWE-190, CWE-125
Affected: php/php
Source: security@php.net

References

https://bugs.php.net/bug.php?id=81739Exploit, Issue Tracking, Patch, Vendor Advisory
https://bugs.php.net/bug.php?id=81739Exploit, Issue Tracking, Patch, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.