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CVE-2020-26541

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Date: October 2, 2020

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.

Language: C

Severity Score

Related Resources (6)

https://security-tracker.debian.org/tracker/CVE-2020-26541
https://lkml.org/lkml/2020/9/15/1871
https://access.redhat.com/security/cve/CVE-2020-26541
https://nvd.nist.gov/vuln/detail/CVE-2020-26541
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-26541
https://www.mend.io/vulnerability-database/CVE-2020-26541

Severity Score

Top Fix

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Upgrade Version

Upgrade to version linux-yocto - 4.8.26+gitAUTOINC+1c60e003c7_27efc3ba68;linux-libc-headers - 5.13

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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