CVE-2017-9605

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.
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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Information

Published : 2017-06-13 12:29

Updated : 2017-11-03 18:29


NVD link : CVE-2017-9605

Mitre link : CVE-2017-9605


JSON object : View

CWE
CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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Products Affected

linux

  • linux_kernel