PT-2022-21901 · Insyde · Insydeh2O

Published 2022-11-14 · Updated 2022-11-18 · CVE-2022-33909

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions InsydeH20 kernel versions prior to 05.27.23 InsydeH20 kernel versions prior to 05.36.23 InsydeH20 kernel versions prior to 05.44.23 InsydeH20 kernel versions prior to 05.52.23

Description DMA transactions targeted at input buffers used for the HddPassword software SMI handler could cause SMRAM corruption through a Time-of-Check-to-Time-of-Use (TOCTOU) attack. This issue was discovered by Insyde engineering based on the general description provided by Intel's iSTARE group.

Recommendations For kernel version 5.2, update to version 05.27.23 or later. For kernel version 5.3, update to version 05.36.23 or later. For kernel version 5.4, update to version 05.44.23 or later. For kernel version 5.5, update to version 05.52.23 or later.

Fix

Time Of Check To Time Of Use

Weakness Enumeration

CWE-367

Related Identifiers

CVE-2022-33909

Affected Products

Insydeh2O

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2022-33909 · Security Note
• https://osv.dev/vulnerability/CVE-2022-33909 · Vendor Advisory
• https://insyde.com/security-pledge/SA-2022051 · Vendor Advisory
• https://insyde.com/security-pledge · Vendor Advisory
• https://t.me/cvenotify/37701 · Telegram Post