CVE-2021-21708 - CERT CVE

  1. CVE-2021-21708

ID CVE-2021-21708
Sažetak 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.
Reference
CVSS
Base: 6.8
Impact: 6.4
Exploitability:8.6
Pristup
VektorSloženostAutentikacija
NETWORK MEDIUM NONE
Impact
PovjerljivostCjelovitostDostupnost
PARTIAL PARTIAL PARTIAL
CVSS vektor AV:N/AC:M/Au:N/C:P/I:P/A:P
Zadnje važnije ažuriranje 07-10-2022 - 14:31
Objavljeno 27-02-2022 - 08:15