Resource Exhaustion Affecting kernel-rt-kvm package, versions <0:3.10.0-862.11.6.rt56.819.el7


Severity

0.0
high
0
10

    Threat Intelligence

    EPSS
    78.3% (99th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTKVM-2106358
  • published 26 Jul 2021
  • disclosed 6 Aug 2018

How to fix?

Upgrade Centos:7 kernel-rt-kvm to version 0:3.10.0-862.11.6.rt56.819.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.

Linux kernel versions 4.9+ can be forced to make very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet which can lead to a denial of service.

References

CVSS Scores

version 3.1
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Snyk

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

7.5 high
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SUSE

7.5 high
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Red Hat

7.5 high