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CVE-2021-47055
MEDIUM5.5
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.
CVE Details
CVSS v3.1 Score5.5
SeverityMEDIUM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack VectorLOCAL
ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
Published2/29/2024
Last Modified1/9/2025
Sourcenvd
Honeypot Sightings0
Affected Products
linux:linux_kernel
Weaknesses (CWE)
CWE-667
References
https://git.kernel.org/stable/c/077259f5e777c3c8821f6b41dee709fcda27306b(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/1e97743fd180981bef5f01402342bb54bf1c6366(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/5880afefe0cb9b2d5e801816acd58bfe91a96981(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/75ed985bd6c8ac1d4e673e93ea9d96c9908c1d37(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/7b6552719c0ccbbea29dde4be141da54fdb5877e(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/9625b00cac6630479c0ff4b9fafa88bee636e1f0(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/a08799d3e8c8088640956237c183f83463c39668(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/f4d28d8b9b0e7c4ae04214b8d7e0b0466ec6bcaf(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/f73b29819c6314c0ba8b7d5892dfb03487424bee(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/077259f5e777c3c8821f6b41dee709fcda27306b(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/1e97743fd180981bef5f01402342bb54bf1c6366(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/5880afefe0cb9b2d5e801816acd58bfe91a96981(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/75ed985bd6c8ac1d4e673e93ea9d96c9908c1d37(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/7b6552719c0ccbbea29dde4be141da54fdb5877e(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/9625b00cac6630479c0ff4b9fafa88bee636e1f0(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/a08799d3e8c8088640956237c183f83463c39668(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/f4d28d8b9b0e7c4ae04214b8d7e0b0466ec6bcaf(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/f73b29819c6314c0ba8b7d5892dfb03487424bee(af854a3a-2127-422b-91ae-364da2661108)
IOC Correlations
No correlations recorded
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