CVE-2021-47055

CVE Details

Release Date:

2024-02-29

Description

In the Linux kernel, the following vulnerability has been resolved: mtd: require write permissions for locking and badblock ioctls MEMLOCK, MEMUNLOCK and OTPLOCK modify protection bits. Thus require write permission. Depending on the hardware MEMLOCK might even be write-once, e.g. for SPI-NOR flashes with their WP# tied to GND. OTPLOCK is always write-once. MEMSETBADBLOCK modifies the bad block table.

See more information about CVE-2021-47055 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:		Base Metrics:
Access Vector:	Undefined	Attack Complexity:	Undefined
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	Undefined
Integrity Impact:	Undefined	Availability Impact:	Undefined

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (kernel)	ELSA-2024-3618	2024-06-05

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team