CVE-2017-7294

HIGH

Description

The vmw_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.10.6 does not validate addition of certain levels data, which allows local users to trigger an integer overflow and out-of-bounds write, and cause a denial of service (system hang or crash) or possibly gain privileges, via a crafted ioctl call for a /dev/dri/renderD* device.

References

http://www.securityfocus.com/bid/97177

https://access.redhat.com/errata/RHSA-2018:0676

https://access.redhat.com/errata/RHSA-2018:1062

https://bugzilla.redhat.com/show_bug.cgi?id=1436798

https://lists.freedesktop.org/archives/dri-devel/2017-March/137094.html

Details

Source: MITRE

Published: 2017-03-29

Updated: 2018-04-12

Type: CWE-787

Risk Information

CVSS v2.0

Base Score: 7.2

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

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3.0

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH