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Advisories

WinFsp through 2.2.26215 NULL Pointer Dereference via Fast I/O

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severity
medium
date
Affecting

  • winfsp <= 2.2.26215

CWE
  • CWE-476 NULL Pointer Dereference
CVSS
6.8
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Luigino Camastra (AISLE Research)
Description
WinFsp through 2.2.26215 contains a null pointer dereference vulnerability in the kernel driver's Fast I/O device control handler that fails to validate the volume context before use. An unprivileged local user can trigger a denial of service by opening the WinFsp control device and issuing FSP_IOCTL_TRANSACT requests, causing a system crash.

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