vulnerability
Red Hat OpenShift: CVE-2019-20908: kernel: lockdown: bypass through ACPI write via efivar_ssdt
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:M/Au:N/C:C/I:C/A:C) | Jul 15, 2020 | Dec 29, 2020 | Apr 11, 2025 |
Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
Jul 15, 2020
Added
Dec 29, 2020
Modified
Apr 11, 2025
Description
An issue was discovered in drivers/firmware/efi/efi.c in the Linux kernel before 5.4. Incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032.
Solution
linuxrpm-upgrade-redhat-coreos
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.