Allocation of Resources Without Limits or Throttling Affecting kernel-rt-kvm package, versions <0:4.18.0-372.9.1.rt7.166.el8


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (5th percentile)

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  • Snyk IDSNYK-CENTOS8-KERNELRTKVM-1969782
  • published2 Aug 2021
  • disclosed2 Aug 2021

Introduced: 2 Aug 2021

CVE-2021-3669  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Centos:8 kernel-rt-kvm to version 0:4.18.0-372.9.1.rt7.166.el8 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:8 relevant fixed versions and status.

A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS.

CVSS Scores

version 3.1