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Debian: CVE-2021-47055: linux -- security update

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Debian: CVE-2021-47055: linux -- security update

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
02/29/2024
Created
07/31/2024
Added
07/30/2024
Modified
01/28/2025

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.

Solution(s)

  • debian-upgrade-linux

References

  • https://attackerkb.com/topics/cve-2021-47055
  • CVE - 2021-47055
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  • 已创建
  • 最后回复

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