Loop with Unreachable Exit Condition ('Infinite Loop') Affecting kernel-bootwrapper package, versions <0:3.10.0-327.3.1.el7


Severity

Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.07% (34th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELBOOTWRAPPER-2058236
  • published 26 Jul 2021
  • disclosed 10 Nov 2015

How to fix?

Upgrade Centos:7 kernel-bootwrapper to version 0:3.10.0-327.3.1.el7 or higher.

NVD Description

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

The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment Check) exceptions, related to svm.c and vmx.c.

References

CVSS Scores

version 3.1
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NVD

6.2 medium
  • Attack Vector (AV)
    Local
  • 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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Red Hat

5.2 medium