PT-2023-13068 · Insyde · Insydeh2O

Published 2023-02-15 · Updated 2023-02-25 · CVE-2022-32475

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 Insyde InsydeH2O kernel versions 5.0 through 5.5

Description An issue was discovered in Insyde InsydeH2O where DMA attacks on the VariableRuntimeDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues, leading to corruption of SMRAM and escalation of privileges. This issue was fixed in the kernel, which also protected chipset and OEM chipset code.

Recommendations For kernel versions 5.0 through 5.5, update the kernel to a version that includes the fix for this issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Time Of Check To Time Of Use

Weakness Enumeration

CWE-367

Related Identifiers

CVE-2022-32475

Affected Products

Insydeh2O

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2022-32475 · Security Note
• https://osv.dev/vulnerability/CVE-2022-32475 · Vendor Advisory
• https://insyde.com/security-pledge/SA-2023007 · Vendor Advisory
• https://insyde.com/security-pledge · Vendor Advisory
• https://t.me/cvenotify/44990 · Telegram Post
• https://t.me/cvenotify/44343 · Telegram Post
• https://t.me/cibsecurity/58224 · Telegram Post