NVIDIA Windows GPU Display Driver Kernel Mode Layer nvlddmkm.sys DxgkDdiEscape null pointer dereference

EntryHistoryDiffjsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.5	$0-$5k	0.00

A vulnerability classified as problematic was found in NVIDIA Windows GPU Display Driver (Hardware Driver Software) (affected version unknown). Affected by this vulnerability is the function DxgkDdiEscape in the library nvlddmkm.sys of the component Kernel Mode Layer. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

NVIDIA Windows GPU Display Driver, all versions, contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape, in which a NULL pointer is dereferenced, leading to denial of service or potential escalation of privileges.

The weakness was published 06/25/2020 (Website). The advisory is shared at nvidia.custhelp.com. This vulnerability is known as CVE-2020-5966 since 01/07/2020. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entries are available at 157253, 157282, 157283 and 157284.

Productinfo

Type

Hardware Driver Software

Vendor

NVIDIA

Name

Windows GPU Display Driver

License

commercial

CPE 2.3info

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CPE 2.2info

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CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/07/2020 🔍
06/25/2020 +170 days 🔍
06/26/2020 +1 days 🔍
10/27/2020 +123 days 🔍

Sourcesinfo

Vendor: nvidia.com

Advisory: nvidia.custhelp.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-5966 (🔍)
See also: 🔍

Entryinfo

Created: 06/26/2020 01:11 PM
Updated: 10/27/2020 10:56 AM
Changes: 06/26/2020 01:11 PM (39), 06/26/2020 01:16 PM (18), 10/27/2020 10:56 AM (1)
Complete: 🔍