#VU19990 Out-of-bounds write in NVIDIA Windows GPU Display Driver - CVE-2019-5685

Vulnerability identifier: #VU19990

Vulnerability risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-5685

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

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

Vendor: nVidia

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in the "NVWGF2UMX_CFG.DLL" driver in "DCL_INDEXABLETEMP" function. A remote attacker can create a specially crafted shader file, trigger out-of-bounds write and execute arbitrary code on the target system or perform a denial of service attack.

This vulnerability can be triggered from VMware guest, affecting VMware host.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

NVIDIA Windows GPU Display Driver: All versions

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External links
https://nvidia.custhelp.com/app/answers/detail/a_id/4841
https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0812

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.