vulnerability
PHP Vulnerability: CVE-2021-21708
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:P/I:P/A:P) | Feb 27, 2022 | Mar 14, 2022 | Mar 14, 2022 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Feb 27, 2022
Added
Mar 14, 2022
Modified
Mar 14, 2022
Description
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.
Solution(s)
php-upgrade-7_4_28php-upgrade-8_0_16php-upgrade-8_1_3
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