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securityvulnsSecurityvulnsSECURITYVULNS:DOC:19836
HistoryMay 14, 2008 - 12:00 a.m.

ZDI-08-023: Microsoft Office RTF Parsing Engine Memory Corruption Vulnerability

2008-05-1400:00:00
vulners.com
11

ZDI-08-023: Microsoft Office RTF Parsing Engine Memory Corruption
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-08-023
August 14, 2007

– CVE ID:
CVE-2008-1091

– Affected Vendors:
Microsoft

– Affected Products:
Microsoft Office Excel
Microsoft Office Word

– TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 6099.
For further product information on the TippingPoint IPS, visit:

http://www.tippingpoint.com

– Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Microsoft Office. User interaction is
required to exploit this vulnerability in that the target must visit a
malicious page, open a malicious email, or open a malicious file.

The specific flaw exists when parsing malformed RTF documents. When
processing a combination of RTF tags a heap overflow occurs. Successful
exploitation can lead to remote compromise of a system under the
credentials of the currently logged in user.

– Vendor Response:
Microsoft has issued an update to correct this vulnerability. More
details can be found at:

http://www.microsoft.com/technet/security/bulletin/ms08-026.mspx

– Disclosure Timeline:
2008-01-21 - Vulnerability reported to vendor
2008-05-13 - Coordinated public release of advisory

– Credit:
This vulnerability was discovered by:
* wushi of team509

– About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents
a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is
used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

http://www.zerodayinitiative.com/advisories/disclosure_policy/

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