CVE-2018-1118

low-risk

Published 2018-05-10

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.

Do I need to act?

0.11% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 2.3/10 Low

LOCAL / LOW complexity

Affected Products (8)

Linux Kernel

Debian Linux

Ubuntu Linux

Virtualization Host

Enterprise Linux Desktop

Enterprise Linux Server

Enterprise Linux Workstation

Affected Vendors

Debian Redhat Linux Canonical

References (14)

Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2948

Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3083

Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3096

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1118

Mailing List https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html

Third Party Advisory https://usn.ubuntu.com/3762-1/

Third Party Advisory https://usn.ubuntu.com/3762-2/

Third Party Advisory https://access.redhat.com/errata/RHSA-2018:2948

Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3083

Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3096

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1118

Mailing List https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html

Third Party Advisory https://usn.ubuntu.com/3762-1/

Third Party Advisory https://usn.ubuntu.com/3762-2/

/ 100

low-risk

Severity 10/34 · Low

Exploitability 0/34 · Minimal

Exposure 14/34 · Moderate