CVE-2018-1118

Description

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.

Categories

2.3
CVSS
Severity: Low
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.03%
Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com
Affected: kernel vhost
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2018:3083 third party advisory vendor advisory
https://usn.ubuntu.com/3762-1/ third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html third party advisory mailing list
https://access.redhat.com/errata/RHSA-2018:2948 third party advisory vendor advisory
https://usn.ubuntu.com/3762-2/ third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2018:3096 third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1118 issue tracking third party advisory

Frequently Asked Questions

What is the severity of CVE-2018-1118?
CVE-2018-1118 has been scored as a low severity vulnerability.
How to fix CVE-2018-1118?
To fix CVE-2018-1118, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-1118 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-1118 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-1118?
CVE-2018-1118 affects kernel vhost.
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