Vulnerability DatabaseCVE-2022-31630
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CVE-2022-31630
November 14, 2022
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. 
Related Resources (3)
https://security-tracker.debian.org/tracker/CVE-2022-31630
https://bugs.php.net/bug.php?id=81739
https://access.redhat.com/security/cve/CVE-2022-31630
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Integer Overflow or Wraparound
CWE-190
Out-of-bounds Read
CWE-125
Incorrect Calculation of Buffer Size
CWE-131
EPSS
Base Score:
0.07