#VU54455 Protection Mechanism Failure in Linux kernel - CVE-2020-26541

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Main Vulnerability Database Vulnerabilities #VU54455

#VU54455 Protection Mechanism Failure in Linux kernel - CVE-2020-26541

Published: June 30, 2021


Vulnerability identifier: #VU54455
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-26541
CWE-ID: CWE-693
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows a local user to escalate privileges on the system.

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. A local user can escalate privileges on the system.


Remediation

Install updates from vendor's website.

External links