#VU1166 Memory Corruption in Windows and Windows Server
Vulnerability identifier: #VU1166
Vulnerability risk: Critical
CVSSv3.1: 9.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Windows
Operating systems & Components /
Operating system
Windows Server
Operating systems & Components /
Operating system
Vendor: Microsoft
Description
A remote attacker can execute arbitrary code on the target system.
The vulnerability exists due to incorrect handling of objects in memory in Windows font library when processing Open Type fonts. A remote attacker can create a specially crafted font file and cause memory corruption.
Successful exploitation of the vulnerability may allow an attacker to execute arbitrary code on vulnerable system with privileges of the current user.
Note: this vulnerability is being actively exploited in the wild.
Mitigation
Vendor has issued patches to address this vulnerability:
Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for Itanium-based Systems Service Pack 2
Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems Service Pack 1
Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Windows 8.1 for 32-bit Systems
Windows 8.1 for 32-bit Systems
Windows 8.1 for x64-based Systems
Windows 8.1 for x64-based Systems
Windows 10 for x64-based Systems
Windows 10 Version 1511 for 32-bit Systems
Windows 10 Version 1511 for x64-based Systems
Windows 10 Version 1607 for 32-bit Systems
Windows 10 Version 1607 for x64-based Systems
Windows Server 2016 for x64-based Systems
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows Server 2012 (Server Core installation)
Windows Server 2012 (Server Core installation)
Windows Server 2012 R2 (Server Core installation)
Windows Server 2012 R2 (Server Core installation)
Windows Server 2016 for x64-based Systems (Server Core installation)
Vulnerable software versions
Windows: Vista, 7, 8.1 - 8.1 RT, 10
Windows Server: 2008 - 2016
External links
http://technet.microsoft.com/library/security/MS16-132
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
