Information Exposure Affecting kernel-rt-kvm package, versions <0:3.10.0-1160.rt56.1131.el7


Severity

high

    Threat Intelligence

    EPSS
    0.05% (15th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTKVM-2175550
  • published 26 Jul 2021
  • disclosed 30 Jan 2020

How to fix?

Upgrade Centos:7 kernel-rt-kvm 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-kvm package and not the kernel-rt-kvm 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 vc_do_resize function in drivers/tty/vt/vt.c.

CVSS Scores

version 3.1
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Snyk

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

6.1 medium
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SUSE

4.4 medium
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Red Hat

6.1 medium