CVE-2021-47055 Affecting kernel-tools-libs package, versions <0:4.18.0-553.5.1.el8_10


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ROCKY8-KERNELTOOLSLIBS-7262139
  • published15 Jun 2024
  • disclosed29 Feb 2024

Introduced: 29 Feb 2024

CVE-2021-47055  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 kernel-tools-libs to version 0:4.18.0-553.5.1.el8_10 or higher.
This issue was patched in RLSA-2024:3618.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools-libs package and not the kernel-tools-libs package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1