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Information Exposure Affecting kernel-rt-kvm package, versions <0:3.10.0-957.rt56.910.el7

Severity

 Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTKVM-2112682
  • published 26 Jul 2021
  • disclosed 23 Apr 2018
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Introduced: 23 Apr 2018

CVE-2018-1118 Open this link in a new tab
CWE-200 Open this link in a new tab

How to fix?

Upgrade Centos:7 kernel-rt-kvm to version 0:3.10.0-957.rt56.910.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 vhost since version 4.8 does not properly initialize memory in messages passed between virtual guests and the host operating system in the vhost/vhost.c:vhost_new_msg() function. This can allow local privileged users to read some kernel memory contents when reading from the /dev/vhost-net device file.