Resource Exhaustion Affecting python-perf package, versions <0:3.10.0-229.el7


Severity

Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.06% (30th percentile)

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  • Snyk ID SNYK-CENTOS7-PYTHONPERF-2041568
  • published 26 Jul 2021
  • disclosed 21 Oct 2014

How to fix?

Upgrade Centos:7 python-perf to version 0:3.10.0-229.el7 or higher.

NVD Description

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

arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 3.17.2 on Intel processors does not ensure that the value in the CR4 control register remains the same after a VM entry, which allows host OS users to kill arbitrary processes or cause a denial of service (system disruption) by leveraging /dev/kvm access, as demonstrated by PR_SET_TSC prctl calls within a modified copy of QEMU.

CVSS Scores

version 3.1
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NVD

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

5.5 medium