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.
References (7)
Core 7
Core References
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:3083
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3762-1/
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:2948
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3762-2/
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:3096
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1118
Scores
CVSS v3
2.3
EPSS
0.0011
EPSS Percentile
28.6%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Details
CWE
CWE-665
CWE-200
Status
published
Products (8)
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
18.04
debian/debian_linux
8.0
linux/linux_kernel
4.8 - 4.18
redhat/enterprise_linux_desktop
7.0
redhat/enterprise_linux_server
7.0
redhat/enterprise_linux_workstation
7.0
redhat/virtualization_host
4.0
Published
May 10, 2018
Tracked Since
Feb 18, 2026