PT-2023-2444 · Insyde · Insydeh2O

Jeremy Boone + 1 · Published 2023-04-10 · Updated 2025-02-11 · CVE-2023-22614

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions InsydeH2O versions 5.0 through 5.5

Description The issue is related to insufficient input validation in BIOS Guard updates, which can lead to memory corruption in SMM. An attacker can exploit this by supplying malformed inputs to the BIOS Guard SMI handler, potentially causing damage to memory.

Recommendations For versions 5.0 through 5.5, consider restricting access to the BIOS Guard SMI handler to minimize the risk of exploitation until a patch is available. As a temporary workaround, avoid supplying malformed inputs to the BIOS Guard SMI handler. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-119

Related Identifiers

BDU:2023-02230

CVE-2023-22614

Affected Products

Insydeh2O

References · 8

• 🔥 https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode · Exploit
• https://insyde.com/security-pledge · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-22614 · Security Note
• https://osv.dev/vulnerability/CVE-2023-22614 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-02230 · Security Note
• https://insyde.com/security-pledge/SA-2023020 · Vendor Advisory
• https://t.me/cvenotify/110934 · Telegram Post
• https://t.me/cvenotify/48060 · Telegram Post