CVE-2016-8630

Published: Nov 28, 2016Modified: May 6, 2026

5.5

Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 1.8 / Impact: 3.6

Source: NVD

Description

The x86_decode_insn function in arch/x86/kvm/emulate.c in the Linux kernel before 4.8.7, when KVM is enabled, allows local users to cause a denial of service (host OS crash) via a certain use of a ModR/M byte in an undefined instruction.

Affected (1)

Products: Linux: Linux Kernel

Linux

1 product

Linux Kernel

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Up to 4.8.6

Related CWEs

CWE-284

Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

CWE-476

NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

References (16)

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d9092f52d7e61dd1557f2db2400ddb430e85937e

Source: secalert@redhat.com

Issue TrackingPatchVendor Advisory

http://rhn.redhat.com/errata/RHSA-2017-0386.html

Source: secalert@redhat.com

http://rhn.redhat.com/errata/RHSA-2017-0387.html

Source: secalert@redhat.com

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.7

Source: secalert@redhat.com

Release Notes

http://www.openwall.com/lists/oss-security/2016/11/22/3

Source: secalert@redhat.com

Mailing ListThird Party Advisory

http://www.securityfocus.com/bid/94459

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=1393350

Source: secalert@redhat.com

Issue Tracking

https://github.com/torvalds/linux/commit/d9092f52d7e61dd1557f2db2400ddb430e85937e

Source: secalert@redhat.com

Issue TrackingPatchThird Party Advisory

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d9092f52d7e61dd1557f2db2400ddb430e85937e