CVE-2019-20908
Medium
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.
SeverityMedium
CVSS6.7
Exploit probability—
Product
Linux Kernel
PublishedJul 15, 2020
First seenJul 15, 2020
How to fix
Update
- linux linux_kernel5.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 5.4 | 5.4 |
| opensuse leap | 15.1 | — |
| canonical ubuntu_linux | 16.04, 18.04 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.