ALT-PU-2022-1331-1
Closed vulnerabilities
Published: 2022-02-27
BDU:2022-05350
Уязвимость функции php_filter_float() интерпретатора языка программирования PHP, позволяющая нарушителю выполнить произвольный код
Severity: CRITICAL (9.8)
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References:
Published: 2022-02-27
Modified: 2024-11-21
Modified: 2024-11-21
CVE-2021-21708
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.
Severity: CRITICAL (9.8)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References: