PT-2023-20190 · Insyde · Insydeh2O

Jeremy Boone + 1 · Published 2023-08-03 · Updated 2023-08-08 · CVE-2023-25600

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions InsydeH2O versions prior to 01.01.04.0016

Description An issue was discovered where a malicious operating system can tamper with a runtime-writable EFI variable, leading to out-of-bounds memory reads and a denial of service.

Recommendations For versions prior to 01.01.04.0016, update to version 01.01.04.0016 to resolve the issue. As a temporary workaround, consider restricting access to runtime-writable EFI variables to minimize the risk of exploitation.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2023-25600

Affected Products

Insydeh2O

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2023-25600 · Security Note
• https://osv.dev/vulnerability/CVE-2023-25600 · Vendor Advisory
• https://insyde.com/security-pledge/SA-2023028 · Vendor Advisory
• https://insyde.com/security-pledge · Note
• https://t.me/cibsecurity/67690 · Telegram Post