CVE Vulnerabilities

CVE-2022-43666

Exposure of Sensitive System Information Due to Uncleared Debug Information

Published: Nov 14, 2023 | Modified: Nov 21, 2024
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

Exposure of sensitive system information due to uncleared debug information for some Intel Unison software may allow an authenticated user to potentially enable information disclosure via local access.

Weakness

The hardware does not fully clear security-sensitive values, such as keys and intermediate values in cryptographic operations, when debug mode is entered.

Affected Software

Name Vendor Start Version End Version
Unison_software Intel * 20.14.5683.0 (excluding)

Extended Description

Security sensitive values, keys, intermediate steps of cryptographic operations, etc. are stored in temporary registers in the hardware. If these values are not cleared when debug mode is entered they may be accessed by a debugger allowing sensitive information to be accessible by untrusted parties.

Potential Mitigations

  • Whenever debug mode is enabled, all registers containing sensitive assets must be cleared.

References