CVE-2021-47055

CVE Details

Release Date:2024-02-29
Impact:Low What is this?

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


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


CVSS v3 metrics

Base Score: 0.0
Vector String: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:N
Version: 3.0
Attack Vector: Local
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality Impact: None
Integrity Impact: None
Availability Impact: None

Errata information


PlatformErrataRelease Date
Oracle Linux version 8 (kernel)ELSA-2024-36182024-06-05


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