National Cyber Awareness System
Vulnerability Summary for CVE-2011-0656
Original release date:04/13/2011
Last revised:01/14/2013
Source:
US-CERT/NIST
Overview
Microsoft PowerPoint 2002 SP3, 2003 SP3, 2007 SP2, and 2010; Office 2004, 2008, and 2011 for Mac; Open XML File Format Converter for Mac; Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2; PowerPoint Viewer; PowerPoint Viewer 2007 SP2; and PowerPoint Web App do not properly validate PersistDirectoryEntry records in PowerPoint documents, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a Slide with a malformed record, which triggers an exception and later use of an unspecified method, aka "Persist Directory RCE Vulnerability."
Impact
CVSS Severity (version 2.0):
Impact Subscore:
10.0
Exploitability Subscore:
8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
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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US-CERT Technical Alert: TA11-102A
Name: TA11-102A
External Source: MS
Name: MS11-022
Type: Advisory; Patch Information
External Source: MISC
Name: http://www.zerodayinitiative.com/advisories/ZDI-11-125
External Source: VUPEN
Name: ADV-2011-0941
Type: Advisory
External Source: SECTRACK
Name: 1025340
External Source: BID
Name: 47251
External Source: BUGTRAQ
Name: 20110412 ZDI-11-125: Microsoft Office PowerPoint PersistDirectoryEntry Remote Code Execution Vulnerability
External Source: OVAL
Name: oval:org.mitre.oval:def:11761
External Source: OSVDB
Name: 71770
References to Check Content
Identifier:oval:org.mitre.oval:def:11761
Check System:http://oval.mitre.org/XMLSchema/oval-definitions-5