Detections
Analytics

CVE-2022-28735

high

Description

The GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain.

References

https://www.openwall.com/lists/oss-security/2022/06/07/5

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28735

https://security.netapp.com/advisory/ntap-20230825-0002/

Details

Source: Mitre, NVD

Published: 2023-07-20

Updated: 2023-08-25

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00015