CVE-2021-21708 (GCVE-0-2021-21708)
Vulnerability from cvelistv5
Published
2022-02-27 08:00
Modified
2024-09-17 03:18
Severity ?
8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
CWE
Summary
In PHP versions 7.4.x below 7.4.28, 8.0.x below 8.0.16, and 8.1.x below 8.1.3, when using filter functions with FILTER_VALIDATE_FLOAT filter and min/max limits, if the filter fails, there is a possibility to trigger use of allocated memory after free, which can result it crashes, and potentially in overwrite of other memory chunks and RCE. This issue affects: code that uses FILTER_VALIDATE_FLOAT with min/max limits.
References
Impacted products
Vendor Product Version
PHP Group PHP Version: 7.4.x   < 7.4.28
Version: 8.0.X   < 8.0.16
Version: 8.1.X   < 8.1.3
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