Security Bulletin: Multiple vulnerabilities in the NVIDIA Windows GPU Display Driver kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape and a vulnerability in the Linux GPU Display Driver kernel mode layer (nvidia.ko)

GPU Display Driver Vulnerabilities in the Kernel Layer May Lead to a Denial of Service, Escalation of Privileges, or Both

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Vulnerability Details

CVE-2016-8821 

NVIDIA Windows GPU Display Driver contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape where improper access controls may allow a user to access arbitrary physical memory, leading to an escalation of privileges.

CVSS Base Score: 8.8
CVSS Temporal Score: 7.7
CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

CVE-2016-8822

NVIDIA Windows GPU Display Driver contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape ID 0x600000E, 0x600000F, and 0x6000010 where a value passed from a user to the driver is used without validation as the index to an internal array, leading to denial of service or potential escalation of privileges.

CVSS Base Score: 8.8
CVSS Temporal Score: 7.9
CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C

CVE-2016-8823

NVIDIA Windows GPU Display Driver contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape where the size of an input buffer is not validated leading to a denial of service or possible escalation of privileges.

CVSS Base Score: 8.8
CVSS Temporal Score: 7.9
CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C

CVE-2016-8824

NVIDIA Windows GPU Display Driver contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape where improper access controls allow a regular user to write a part of the registry intended for privileged users only, leading to escalation of privileges.

CVSS Base Score: 8.8
CVSS Temporal Score: 7.9
CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C

CVE-2016-8825

NVIDIA Windows GPU Display Driver contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape where the size of an input buffer is not validated, leading to denial of service or potential escalation of privileges.

CVSS Base Score: 8.8
CVSS Temporal Score: 7.9
CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C

CVE-2016-8826

NVIDIA GPU Display Driver contains a vulnerability in the kernel mode layer (nvlddmkm.sys for Windows or nvidia.ko for Linux) where a user can cause a GPU interrupt storm, leading to a denial of service.

CVSS Base Score: 6.5
CVSS Temporal Score: 5.9
CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:P/RL:O/RC:C

NVIDIA’s risk assessment is based on an average of risk across a diverse set of installed systems and may not represent the true risk of your local installation. NVIDIA recommends consulting a local security or IT professional to evaluate the risk of your specific configuration. NVIDIA doesn't know of any exploits to these issues at this time.

Affected Products

Fixes

You can download the fixes from the NVIDIA NVIDIA Driver Downloads page.

Quadro, NVS, Tesla, GeForce, and GRID  on Windows

Quadro, NVS, Tesla, GeForce, and GRID on Linux

Mitigations

None

Acknowledgements

CVE-2016-8822: NVIDIA was informed of this issue by Oliver Chang, working with Google Project Zero.

CVE-2016-8823: NVIDIA was informed of this issue by Piotr Bania of Cisco Talos.

Revision History

Frequently Asked Questions (FAQs)

How do I know what driver version I have installed?

1. Launch Windows Device Manager.
2. Select Display Adapters.
3. Select the NVIDIA GPU node and right-click.
4. Go to the Driver tab.

The driver version can be deciphered as shown in the following examples: 10.18.13.6472 is 364.72 and 10.18.13.472 is 304.72

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