SB2018081423 - Privilege escalation in Microsoft Windows DirectX Graphics Kernel (DXGKRNL) driver

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Main Vulnerability Database SB2018081423

SB2018081423 - Privilege escalation in Microsoft Windows DirectX Graphics Kernel (DXGKRNL) driver

Published: August 14, 2018

Security Bulletin ID SB2018081423
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Memory corruption (CVE-ID: CVE-2018-8400)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 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:U/U:Clear


The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to improper handling of objects in memory by the DirectX Graphics Kernel (DXGKRNL) driver. A local attacker can run a specially crafted application, trigger memory corruption and gain SYSTEM privileges.


2) Memory corruption (CVE-ID: CVE-2018-8401)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 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:U/U:Clear


The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to improper handling of objects in memory by the DirectX Graphics Kernel (DXGKRNL) driver. A local attacker can run a specially crafted application, trigger memory corruption and gain SYSTEM privileges.


3) Memory corruption (CVE-ID: CVE-2018-8405)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 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:A/U:Clear


The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to improper handling of objects in memory by the DirectX Graphics Kernel (DXGKRNL) driver. A local attacker can run a specially crafted application, trigger memory corruption and gain SYSTEM privileges.


4) Memory corruption (CVE-ID: CVE-2018-8406)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 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:A/U:Clear


The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to improper handling of objects in memory by the DirectX Graphics Kernel (DXGKRNL) driver. A local attacker can run a specially crafted application, trigger memory corruption and gain SYSTEM privileges.

Remediation

Install update from vendor's website.

References