CVE-2017-7261

MEDIUM

Description

The vmw_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.10.5 does not check for a zero value of certain levels data, which allows local users to cause a denial of service (ZERO_SIZE_PTR dereference, and GPF and possibly panic) via a crafted ioctl call for a /dev/dri/renderD* device.

References

http://marc.info/?t=149037004200005&r=1&w=2

http://www.securityfocus.com/bid/97096

https://bugzilla.redhat.com/show_bug.cgi?id=1435719

https://lists.freedesktop.org/archives/dri-devel/2017-March/136814.html

Details

Source: MITRE

Published: 2017-03-24

Updated: 2017-03-29

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 4.9

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3.0

Base Score: 5.5

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

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM