What is the severity of CVE-2018-6920?

CVE-2018-6920 is rated as moderate severity due to the potential disclosure of kernel memory to unprivileged userland processes.

How do I fix CVE-2018-6920?

To fix CVE-2018-6920, update your FreeBSD system to versions 11.1-STABLE(r332303), 11.1-RELEASE-p10, 10.4-STABLE(r332321), or 10.4-RELEASE-p9 or later.

What versions of FreeBSD are affected by CVE-2018-6920?

CVE-2018-6920 affects FreeBSD versions prior to 11.1-STABLE(r332303) and versions before 10.4-RELEASE-p9.

Is CVE-2018-6920 a local or remote vulnerability?

CVE-2018-6920 is considered a local vulnerability since it requires access to userland processes to exploit.

What are the potential impacts of CVE-2018-6920?

The potential impact of CVE-2018-6920 includes the unauthorized disclosure of kernel memory contents, which could lead to further system compromise.

Vulnerability/
CVE-2018-6920

medium

5.5

CWE

200

8/5/2018

16/9/2024

CVE-2018-6920: Infoleak

First published: Tue May 08 2018(Updated: )

In FreeBSD before 11.1-STABLE(r332303), 11.1-RELEASE-p10, 10.4-STABLE(r332321), and 10.4-RELEASE-p9, due to insufficient initialization of memory copied to userland in the Linux subsystem and Atheros wireless driver, small amounts of kernel memory may be disclosed to userland processes. Unprivileged authenticated local users may be able to access small amounts of privileged kernel data.

Credit: secteam@freebsd.org

Affected Software	Affected Version	How to fix
FreeBSD Kernel	>=10.0<10.4
FreeBSD Kernel	>=11.0<11.1

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Frequently Asked Questions

What is the severity of CVE-2018-6920?
CVE-2018-6920 is rated as moderate severity due to the potential disclosure of kernel memory to unprivileged userland processes.
How do I fix CVE-2018-6920?
To fix CVE-2018-6920, update your FreeBSD system to versions 11.1-STABLE(r332303), 11.1-RELEASE-p10, 10.4-STABLE(r332321), or 10.4-RELEASE-p9 or later.
What versions of FreeBSD are affected by CVE-2018-6920?
CVE-2018-6920 affects FreeBSD versions prior to 11.1-STABLE(r332303) and versions before 10.4-RELEASE-p9.
Is CVE-2018-6920 a local or remote vulnerability?
CVE-2018-6920 is considered a local vulnerability since it requires access to userland processes to exploit.
What are the potential impacts of CVE-2018-6920?
The potential impact of CVE-2018-6920 includes the unauthorized disclosure of kernel memory contents, which could lead to further system compromise.

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