title: heap-buffer-overflow in phar_extract_file
description: In PHP versions 7.3.x below 7.3.15 and 7.4.x below 7.4.3, while extracting PHAR files on Windows using phar extension, certain content inside PHAR file could lead to one-byte read past the allocated buffer. This could potentially lead to information disclosure or crash.
problem types: CWE-125 Out-of-bounds Read
affected:
{
platforms: Windows
product: PHP
vendor: PHP Group
versions:
lessThan: 7.3.15, status: affected, version: 7.3.x, versionType: custom
lessThan: 7.4.3, status: affected, version: 7.4.x, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 6.5
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
version: 3.1
]