| ID |
CVE-2017-9605
|
| Sažetak |
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. |
| Reference |
|
| CVSS |
| Base: | 4.9 |
| Impact: | 6.9 |
| Exploitability: | 3.9 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| LOCAL |
LOW |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| COMPLETE |
NONE |
NONE |
|
| CVSS vektor |
AV:L/AC:L/Au:N/C:C/I:N/A:N |
| Zadnje važnije ažuriranje |
04-11-2017 - 01:29 |
| Objavljeno |
13-06-2017 - 19:29 |
