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CVE-2015-6130

Status Candidate

Overview

Integer underflow in Uniscribe in Microsoft Windows 7 SP1 and Windows Server 2008 R2 SP1 allows remote attackers to execute arbitrary code via a crafted font, aka "Windows Integer Underflow Vulnerability."

Related Files

Microsoft Unicode Scripts Processor Arbitrary Code Execution
Posted Dec 17, 2015
Authored by Secunia, Hossein Lotfi

On the 8th December 2015, Microsoft released Security Bulletin MS15-130 to fix a vulnerability in Unicode Scripts Processor component found by Secunia Research. The vector for a successful exploitation is a specially crafted "True Type Font" (TTF) file, which typically can be embedded in e.g. Microsoft Office documents or even in emails and web-based content depending on the font type. Successful exploitation could result in arbitrary code execution.

tags | advisory, web, arbitrary, code execution
advisories | CVE-2015-6130
SHA-256 | ae0792efc0a69b310511509667b6228f00070e222be6e495c2a81037abe590ff
Microsoft Windows usp10.dll "GetFontDesc()" Integer Underflow
Posted Dec 10, 2015
Authored by Secunia, Hossein Lotfi | Site secunia.com

Secunia Research has discovered a vulnerability in Microsoft Windows, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused due to an integer underflow error within the "GetFontDesc()" function in usp10.dll when processing font files cmap table and can be exploited to cause a heap-based buffer overflow via a font file containing cmap table data with specially crafted offset within encoding records. Successful exploitation allows execution of arbitrary code.

tags | advisory, overflow, arbitrary
systems | windows
advisories | CVE-2015-6130
SHA-256 | d65fab95536006f5a8a8545eff4d02524698f63bed04d5515fe21776d1ea97e1
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