High severity · published Nov 14, 2022
CVE-2022-31630
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…
7.1
CVSS
1.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PH
PHP · PHP
7.4.0 before 7.4.33; 8.0.0 before 8.0.25; 8.1.0 before 8.1.12 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-31630
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-31630
Exploit
https://bugs.php.net/bug.php?id=81739
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