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Last updated: 4/16/2014

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National Cyber Awareness System

Vulnerability Summary for CVE-2006-3431

Original release date: 07/07/2006
Last revised: 03/07/2011
Source: US-CERT/NIST

Overview

Buffer overflow in certain Asian language versions of Microsoft Excel might allow user-assisted attackers to execute arbitrary code via a crafted STYLE record in a spreadsheet that triggers the overflow when the user attempts to repair the document or selects the "Style" option, as demonstrated by nanika.xls. NOTE: Microsoft has confirmed to CVE via e-mail that this is different than the other Excel vulnerabilities announced before 20060707, including CVE-2006-3059 and CVE-2006-3086.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.5 (HIGH) (AV:N/AC:L/AU:N/C:P/I:P/A:P) (legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: MS
Name: MS06-059
External Source: BUGTRAQ
Name: 20060707 Major updates to Excel 0-day Vulnerability FAQ at SecuriTeam Blogs
External Source: HP
Name: HPSBST02161
External Source: SECTRACK
Name: 1016430
External Source: BID
Name: 18872
External Source: BUGTRAQ
Name: 20060703 Excel 2000/XP/2003 Style 0day POC
External Source: HP
Name: SSRT061264
External Source: BUGTRAQ
Name: 20060711 New CVE number states Excel Style handling as a separate issue
External Source: SECUNIA
Name: 20268
Type: Advisory
External Source: VUPEN
Name: ADV-2006-2689
US-CERT Vulnerability Note: OVAL
Name: oval:org.mitre.oval:def:431
Type: Tool Signature

References to Check Content

Identifier: oval:org.mitre.oval:def:431
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

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