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NVIDIA Patches Flaws in GPU Display Driver, GeForce Experience

NVIDIA this week released software security updates to address multiple vulnerabilities in GPU Display Driver and GeForce Experience.

NVIDIA this week released software security updates to address multiple vulnerabilities in GPU Display Driver and GeForce Experience.

A total of 8 security flaws were patched in NVIDIA GPU Display Driver. These issues could lead to denial of service, escalation of privileges, or information disclosure, the company explains.

The most important of these bugs are two vulnerabilities in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape. Tracked as CVE‑2019‑5690 and CVE‑2019‑5691 and having a CVSS score of 7.8, both of these issues could lead to denial of service or escalation of privileges.

Tracked as CVE‑2019‑5692 and featuring a CVSS score of 7.1, the third issue impacts the same component and could also lead to escalation of privileges or denial of service.

The kernel mode layer (nvlddmkm.sys) is also affected by CVE‑2019‑5693 (CVSS score 6.5), a vulnerability where a pointer that has not been initialized is used, thus potentially leading to denial of service.

An issue in the NVIDIA Control Panel (CVE‑2019‑5694, CVSS score 6.5), where Windows system DLLs are loaded without validation, could be abused for denial of service or information disclosure through code execution, but only if the attacker has local system access, NVIDIA explains.

A bug in the local service provider component of the display driver could be abused in a similar manner, for binary planting or DLL preloading, resulting in denial of service or information disclosure through code execution. The flaw is tracked as CVE‑2019‑5695 and has a CVSS score of 6.5.

The last three flaws addressed this month in the GPU display driver impact the Virtual GPU Manager and could lead to denial of service. Tracked as CVE‑2019‑5696, CVE‑2019‑5697, and CVE‑2019‑5698, these issues feature CVSS scores of 5.5, 5.3, and 5.1, respectively.

Three vulnerabilities were patched in the NVIDIA GeForce Experience software this month, and their exploitation could lead to code execution, information disclosure, or denial of service, NVIDIA says.

The first of them is CVE‑2019‑5701 (CVSS score 7.8), a vulnerability when GameStream is enabled, which could allow an attacker with local system access to load the Intel graphics driver DLLs without validation. This could lead to denial of service, information disclosure, or privilege escalation.

A vulnerability in the Downloader component (CVE‑2019‑5689, CVSS score 6.7) could be abused by a user with local access to download malicious files. This could lead to code execution, denial of service, or information disclosure.

NVIDIA also addressed CVE‑2019‑5695 (CVSS score 6.5), a vulnerability in the local service provider component that could allow a local attacker to load Windows system DLLs without validation, which could result in denial of service or information disclosure.

These bugs were addressed for Windows users in NVIDIA GPU Display Driver version 441.12 (for GeForce and Quadro, NVS R440 versions) and NVIDIA GeForce Experience version 3.20.1.

NVIDIA vGPU Software 8.2 (driver 426.26) for Windows and vGPU software version 8.2 (driver 418.109) for Citrix Hypervisor, VMware vSphere, Red Hat Enterprise Linux KVM, and Nutanix AHV also contain the fixes.

NVIDIA will release updates for other Quadro, NVS, Tesla, and vGPU software versions in the week of November 18, 2019.

Related: NVIDIA Patches Command Execution Vulnerability in GeForce Experience

Related: NVIDIA Patches High Severity Bugs in GPU Display Driver

Written By

Ionut Arghire is an international correspondent for SecurityWeek.

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