CVE-2019-20908

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.

CVSS v3.1

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

CVSS v2.0

6.9 MEDIUMAV:L/AC:M/Au:N/C:C/I:C/A:C

EPSS

0.51% chance of exploitation in the next 30 days, 42th percentile

Published

2020-07-15

Updated

2024-08-05

Proof-of-concept exploits (1)

• Annavid/CVE-2020-15780-exploit0★ · 2023-12-27

References

• CVE Record
• NVD entry

Related

• CVE-2020-15780
• CVE-2019-20804
• CVE-2019-20909
• CVE-2019-20803
• CVE-2019-20910
• CVE-2019-20802