Race Condition Affecting kernel-rt-kvm package, versions <0:3.10.0-514.rt56.420.el7


Severity

Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.1% (43rd percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTKVM-2072320
  • published 26 Jul 2021
  • disclosed 1 Aug 2016

How to fix?

Upgrade Centos:7 kernel-rt-kvm to version 0:3.10.0-514.rt56.420.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.

Race condition in the ioctl_send_fib function in drivers/scsi/aacraid/commctrl.c in the Linux kernel through 4.7 allows local users to cause a denial of service (out-of-bounds access or system crash) by changing a certain size value, aka a "double fetch" vulnerability.