Out-of-bounds Read Affecting kernel-modules-extra package, versions <0:4.18.0-372.13.1.el8_6


Severity

Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-CENTOS8-KERNELMODULESEXTRA-1956269
  • published 26 Jul 2021
  • disclosed 16 Nov 2020

How to fix?

Upgrade Centos:8 kernel-modules-extra to version 0:4.18.0-372.13.1.el8_6 or higher.

NVD Description

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

A buffer over-read (at the framebuffer layer) in the fbcon code in the Linux kernel before 5.8.15 could be used by local attackers to read kernel memory, aka CID-6735b4632def.

CVSS Scores

version 3.1
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NVD

5.8 medium
  • Attack Vector (AV)
    Physical
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    High
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    High
  • Availability (A)
    High
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Red Hat

5.8 medium
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SUSE

5.1 medium