Use After Free Affecting kernel-rt-trace-devel package, versions <0:3.10.0-1160.rt56.1131.el7


Severity

high

    Threat Intelligence

    EPSS
    0.06% (25th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-2176218
  • published 26 Jul 2021
  • disclosed 30 Jan 2020

How to fix?

Upgrade Centos:7 kernel-rt-trace-devel to version 0:3.10.0-1160.rt56.1131.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-trace-devel package and not the kernel-rt-trace-devel package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region function in drivers/video/console/vgacon.c.

CVSS Scores

version 3.1
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Snyk

5.9 high
  • Attack Vector (AV)
    Physical
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    None
  • Availability (A)
    High
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NVD

5.9 medium
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SUSE

4.4 medium
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Red Hat

5.9 medium