CVE-2020-5956 Information

Description

An issue was discovered in SdLegacySmm in Insyde InsydeH2O with kernel 5.1 before 05.15.11 5.2 before 05.25.11 5.3 before 05.34.11 and 5.4 before 05.42.11. The software SMI handler allows untrusted external input because it does not verify CommBuffer.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

https://www.insyde.com/security-pledge https://security.netapp.com/advisory/ntap-20220223-0001/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5