Remote code execution in Microsoft Windows

Published: 2014-10-14 00:00:00 | Updated: 2017-01-18
Severity Critical
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2014-4148
CVSSv3 8.9 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]
CWE ID CWE-20
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software Windows Server
Windows
Vulnerable software versions Windows Server 2003
Windows Server 2008 R2
Windows Server 2008
Windows Server 2012 R2
Windows Server 2012
Windows RT 8.1
Windows RT
Windows 8

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Vendor URL Microsoft

Security Advisory

1) Improper input validation

Description

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

The weakness exists due to improper input validation when processing TrueType fonts in kernel-mode driver (win32k.sys). A remote attacker can create a specially crafted font file, place it on a web page, trick the victim into visiting it, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Note: the vulnerability was being actively exploited.

Remediation

Install update from vendor's website.

External links

https://technet.microsoft.com/en-us/library/security/ms14-058

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