Remote code execution in Win32k Graphics in Microsoft Windows

Published: 2017-09-12 21:54:33
Severity High
Patch available YES
Number of vulnerabilities 1
CVSSv2 6.9 (AV:N/AC:M/Au:N/C:C/I:C/A:C/E:U/RL:OF/RC:C)
CVSSv3 8.3 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE ID CVE-2017-8682
CWE ID CWE-119
Exploitation vector Network
Public exploit Not available
Vulnerable software Windows
Windows Server
Microsoft Office
Microsoft Word
Vulnerable software versions Windows 8.1
Windows 7
Windows 10
Windows RT 8.1
Windows Server 2012
Windows Server 2012 R2
Windows Server 2008
Windows Server 2008 R2
Windows Server 2016
Microsoft Office 2010 Service Pack 2
Microsoft Office 2007
Microsoft Word Viewer
Vendor URL Microsoft
Advisory type Public

Security Advisory

1) Buffer overflow

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error when processing fonts within Win32k.sys driver. A remote unauthenticated attacker can create a specially crafted font, trick the victim into loading it and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install updates from vendor's website.

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8682

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