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CVE-2021-47055 Affecting kernel-tools-debuginfo 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)

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  • Snyk ID SNYK-ROCKY8-KERNELTOOLSDEBUGINFO-7262136
  • published 15 Jun 2024
  • disclosed 29 Feb 2024
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Introduced: 29 Feb 2024

CVE-2021-47055 Open this link in a new tab

How to fix?

Upgrade Rocky-Linux:8 kernel-tools-debuginfo 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-debuginfo package and not the kernel-tools-debuginfo 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
Expand this section

SUSE

4.4 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    High
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
Expand this section

Red Hat

3.3 low