CVE-2017-9605

Aliases:DEBIAN-CVE-2017-9605
Advisory lineage Upstream: 0 Downstream: 12
Modified
Published: 13 Jun 2017, 19:00
Last modified:05 Aug 2024, 17:11

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.0 (nvd)
EPSS Score
0.4% LOW
0% probability +0.29%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

13 Jun 2017, 19:00
Published
Vulnerability first disclosed
05 Aug 2024, 17:11
Last Modified
Vulnerability information updated

Description

The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle variable but does not give it an initial value. If one attempts to create a GB surface, with a previously allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and is then later returned to user space, allowing local users to obtain sensitive information from uninitialized kernel memory via a crafted ioctl call.

CVSS Metrics

  • v3.0•MEDIUM•Score: 5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  • v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:C/I:N/A:N

EPSS Trends

Current EPSS score: 0.40%• Percentile: 34%

Techniques & Countermeasures

  • CWE-200•Exposure of Sensitive Information to an Unauthorized Actor

    The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Affected Systems

  • debian•linux

    < 4.11.6-1 | < 4.11.6-1 | < 4.11.6-1 | < 4.11.6-1

  • linux•linux_kernel

    ≤ 4.11.4

References (6)