Remote code execution in Microsoft Windows



Published: 2014-10-14 | Updated: 2017-01-18
Risk Critical
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2014-4148
CWE-ID CWE-20
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
Subscribe 		Windows Server
Operating systems & Components / Operating system

Windows
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one critical risk vulnerability.

1) Improper input validation

EUVDB-ID: #VU4867

Risk: Critical

CVSSv3.1:

CVE-ID: CVE-2014-4148

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: No

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows Server: 2003 - 2012 R2

Windows: 7 - Vista

CPE2.3 External links

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

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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