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CVE-2021-47055 Detail

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/077259f5e777c3c8821f6b41dee709fcda27306b
https://git.kernel.org/stable/c/1e97743fd180981bef5f01402342bb54bf1c6366
https://git.kernel.org/stable/c/5880afefe0cb9b2d5e801816acd58bfe91a96981
https://git.kernel.org/stable/c/75ed985bd6c8ac1d4e673e93ea9d96c9908c1d37
https://git.kernel.org/stable/c/7b6552719c0ccbbea29dde4be141da54fdb5877e
https://git.kernel.org/stable/c/9625b00cac6630479c0ff4b9fafa88bee636e1f0
https://git.kernel.org/stable/c/a08799d3e8c8088640956237c183f83463c39668
https://git.kernel.org/stable/c/f4d28d8b9b0e7c4ae04214b8d7e0b0466ec6bcaf
https://git.kernel.org/stable/c/f73b29819c6314c0ba8b7d5892dfb03487424bee

Weakness Enumeration

CWE-ID CWE Name Source

Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-47055
NVD Published Date:
02/29/2024
NVD Last Modified:
03/01/2024
Source:
kernel.org