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CVE-2017-9605 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=07678eca2cf9c9a18584e546c2b2a0d0c9a3150c	CVE	Issue TrackingPatchThird Party Advisory
https://github.com/torvalds/linux/commit/07678eca2cf9c9a18584e546c2b2a0d0c9a3150c	CVE	Issue TrackingPatchThird Party Advisory
http://www.debian.org/security/2017/dsa-3927	CVE
http://www.debian.org/security/2017/dsa-3945	CVE
http://www.securityfocus.com/bid/99095	CVE	Third Party AdvisoryVDB Entry
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=07678eca2cf9c9a18584e546c2b2a0d0c9a3150c	[email protected]	Issue TrackingPatchThird Party Advisory
https://github.com/torvalds/linux/commit/07678eca2cf9c9a18584e546c2b2a0d0c9a3150c	[email protected]	Issue TrackingPatchThird Party Advisory
http://www.debian.org/security/2017/dsa-3927	[email protected]
http://www.debian.org/security/2017/dsa-3945	[email protected]
http://www.securityfocus.com/bid/99095	[email protected]	Third Party AdvisoryVDB Entry

see all 10 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-200	Exposure of Sensitive Information to an Unauthorized Actor	[email protected]

Affected Products

Product	Versions
linux linux kernel	<= 4.11.4
CPE cpe:2.3:o:linux:linux_kernel:::::::: Remediation No remediation found in references.

Change History

7 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 13, 2026	CVE Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 4, 2017	CVE Modified	[email protected]
Jun 27, 2017	Initial Analysis	[email protected]
Jun 20, 2017	CVE Modified	[email protected]