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CVE-2011-0105

Status Candidate

Overview

Microsoft Excel 2002 SP3, Office 2004 and 2008 for Mac, and Open XML File Format Converter for Mac obtain a certain length value from an uninitialized memory location, which allows remote attackers to trigger a buffer overflow and execute arbitrary code via a crafted Excel file, aka "Excel Data Initialization Vulnerability."

Related Files

MS11-021 Microsoft Office 2007 Excel .xlb Buffer Overflow
Posted Nov 6, 2011
Authored by Abysssec, sinn3r, Aniway, juan vazquez | Site metasploit.com

This Metasploit module exploits a vulnerability found in Excel of Microsoft Office 2007. By supplying a malformed .xlb file, an attacker can control the content (source) of a memcpy routine, and the number of bytes to copy, therefore causing a stack-based buffer overflow. This results in arbitrary code execution under the context of the user.

tags | exploit, overflow, arbitrary, code execution
advisories | CVE-2011-0105
MD5 | 52f4fae2645df04c9e459cc1c601657e
Microsoft Office Excel Real Time Data Stack Overwrite
Posted Apr 15, 2011
Authored by Nicolas Joly, VUPEN | Site vupen.com

The VUPEN Vulnerability Research Team discovered a critical vulnerability in Microsoft Office Excel. The vulnerability is caused by a stack overwrite error when parsing the RTD RealTimeData record (0813h), which could be exploited by attackers to compromise a vulnerable system by tricking a user into opening a specially crafted Excel document.

tags | advisory
advisories | CVE-2011-0105
MD5 | 8a9b10b8c6126389ccb131f8132e76a3
Zero Day Initiative Advisory 11-121
Posted Apr 12, 2011
Authored by Tipping Point | Site zerodayinitiative.com

Zero Day Initiative Advisory 11-121 - This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Office Excel. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the application's parsing of a particular record within a Microsoft Excel Compound Document. When specifying a particular value, the application will fail to initialize a variable that is used as the length of a memcpy operation. Due to the usage of the uninitialized value, with proper control of the program flow an attacker can force a length of their own choosing for the memcpy operation. This will cause a buffer overflow and can lead to code execution under the context of the application.

tags | advisory, remote, overflow, arbitrary, code execution
advisories | CVE-2011-0105
MD5 | 0eb1bba67f42bd873f5b408f1e1449d4
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