VULNERABILITY INTELLIGENCE

CVE-2022-31243

CVSS score6.4 MEDIUM
EPSS probability0.16%
CISA KEVNot currently listed
Published2022-11-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Description

Update description and links DMA transactions which are targeted at input buffers used for the software SMI handler used by the FvbServicesRuntimeDxe driver could cause SMRAM corruption through a TOCTOU attack.. "DMA transactions which are targeted at input buffers used for the software SMI handler used by the FvbServicesRuntimeDxe driver could cause SMRAM corruption. This issue was discovered by Insyde engineering based on the general description provided by Intel's iSTARE group. Fixed in Kernel 5.2: 05.27.21. Kernel 5.3: 05.36.21. Kernel 5.4: 05.44.21. Kernel 5.5: 05.52.21 https://www.insyde.com/security-pledge/SA-2022044

Weakness classification

  • nvd@nist.gov: CWE-367
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-367

Primary references