CVE-2020-26541

Severity

65%

Complexity

6%

Confidentiality

98%

The Linux kernel through 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database (aka dbx) protection mechanism. This affects certs/blacklist.c and certs/system_keyring.c.

CVSS 3.1 Base Score 6.5. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 6.9. CVSS Attack Vector: local. CVSS Attack Complexity: medium. CVSS Vector: (AV:L/AC:M/Au:N/C:C/I:C/A:C).

Overview

First reported 4 years ago

2020-10-02 19:15:00

Last updated 4 years ago

2020-10-05 02:17:00

Affected Software

Linux Kernel

References

https://lkml.org/lkml/2020/9/15/1871

https://lkml.org/lkml/2020/9/15/1871

Exploit, Vendor Advisory

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