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Root Complex OS Re-Enable

Bulletin ID: AMP-SB-0006
CVE-2022-46892

Who is Impacted

Systems that use OS to disable root port.

Potential Impact

Depending on platform configuration, reenabling root ports may provide unintended access.

Severity:

Low Severity

CVSS Score: 3.6

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

Problem Statement and Impact

A Root complex is typically disabled during boot via the BIOS. However, the OS can overwrite the DSDT ACPI table to reinitialize the Root Complex.

Fixed in

SRP 2.10c

Affected Products

Ampere® Altra® and Ampere® Altra®Max

Recommendations

Update SRP to 2.10c

Created At : June 1st 2023, 10:25:31 pm
Last Updated At : June 1st 2023, 10:25:34 pm
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