CVE - CVE-2021-47055

CVE-ID
CVE-2021-47055	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/077259f5e777c3c8821f6b41dee709fcda27306b URL:https://git.kernel.org/stable/c/077259f5e777c3c8821f6b41dee709fcda27306b MISC:https://git.kernel.org/stable/c/1e97743fd180981bef5f01402342bb54bf1c6366 URL:https://git.kernel.org/stable/c/1e97743fd180981bef5f01402342bb54bf1c6366 MISC:https://git.kernel.org/stable/c/5880afefe0cb9b2d5e801816acd58bfe91a96981 URL:https://git.kernel.org/stable/c/5880afefe0cb9b2d5e801816acd58bfe91a96981 MISC:https://git.kernel.org/stable/c/75ed985bd6c8ac1d4e673e93ea9d96c9908c1d37 URL:https://git.kernel.org/stable/c/75ed985bd6c8ac1d4e673e93ea9d96c9908c1d37 MISC:https://git.kernel.org/stable/c/7b6552719c0ccbbea29dde4be141da54fdb5877e URL:https://git.kernel.org/stable/c/7b6552719c0ccbbea29dde4be141da54fdb5877e MISC:https://git.kernel.org/stable/c/9625b00cac6630479c0ff4b9fafa88bee636e1f0 URL:https://git.kernel.org/stable/c/9625b00cac6630479c0ff4b9fafa88bee636e1f0 MISC:https://git.kernel.org/stable/c/a08799d3e8c8088640956237c183f83463c39668 URL:https://git.kernel.org/stable/c/a08799d3e8c8088640956237c183f83463c39668 MISC:https://git.kernel.org/stable/c/f4d28d8b9b0e7c4ae04214b8d7e0b0466ec6bcaf URL:https://git.kernel.org/stable/c/f4d28d8b9b0e7c4ae04214b8d7e0b0466ec6bcaf MISC:https://git.kernel.org/stable/c/f73b29819c6314c0ba8b7d5892dfb03487424bee URL:https://git.kernel.org/stable/c/f73b29819c6314c0ba8b7d5892dfb03487424bee
Assigning CNA
kernel.org
Date Record Created
20240229	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240229)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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