Race Condition Affecting kernel-bootwrapper package, versions <0:3.10.0-123.9.2.el7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.06% (29th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-4488574
  • published 26 Jul 2021
  • disclosed 21 Oct 2014

How to fix?

Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-123.9.2.el7 or higher.
This issue was patched in RHSA-2014:1724.

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 RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

Race condition in the __kvm_migrate_pit_timer function in arch/x86/kvm/i8254.c in the KVM subsystem in the Linux kernel through 3.17.2 allows guest OS users to cause a denial of service (host OS crash) by leveraging incorrect PIT emulation.

CVSS Scores

version 3.1
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NVD

4.7 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
Expand this section

Red Hat

5.7 medium