#VU1117 Denial of service in nVidia products - CVE-2016-7391

Vulnerability identifier: #VU1117

Vulnerability risk: Medium

CVSSv4.0: 7.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2016-7391

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: Yes

Vulnerable software:
NVS
Client/Desktop applications / Multimedia software
Quadro
Client/Desktop applications / Multimedia software
NVIDIA Windows GPU Display Driver
Client/Desktop applications / Virtualization software

Vendor: nVidia

Description
The vulnerability allows a local user to cause DoS condition or gain elevated privileges on the target system.
The weakness exists due to improper array bounds validation  in the kernel mode layer (nvlddmkm.sys) handler for DxgDdiEscape ID 0x100010b,that allows a local attacker to write to kernel memory, leading to denial of service or potential escalation of privileges..
Successful exploitation of the vulnerability may result in denial of service or privilege escalation.

Mitigation
Update Quadro and NVS to 342.00, 375.63.
Update GeForce to 375.63.

Vulnerable software versions

NVS: 340 - 375.63

Quadro: 340 - 375.63

NVIDIA Windows GPU Display Driver: 375 - 375.63

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External links
https://nvidia.custhelp.com/app/answers/detail/a_id/4247

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.