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>> IBM Lotus Notes 1-2-3 File Viewer Remote Buffer Overflow Vulnerability

Title : IBM Lotus Notes 1-2-3 File Viewer Remote Buffer Overflow Vulnerability
VUPEN ID : VUPEN/ADV-2007-4012
CVE ID : CVE-2007-6593
Rated as : Critical 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2007-11-27


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format  Receive VUPEN Security notifications by SMS 

A vulnerability has been identified in IBM Lotus Notes, which could be exploited by attackers to cause a denial of service or take complete control of an affected system. This issue is caused by a buffer overflow error in the Lotus 1-2-3 file viewer (l123sr.dll) when processing a specially crafted ".123" file, which could be exploited by attackers to crash an affected application or execute arbitrary code by tricking a user into double-clicking and viewing a specially crafted attachment.

Affected Products

IBM Lotus Notes version 6.0
IBM Lotus Notes version 6.5
IBM Lotus Notes version 7.0
IBM Lotus Notes version 8.0

Solution

Contact IBM Support to obtain patches for Lotus Notes 7.x and 8.x :
http://www.ibm.com/contact/us/

Disable the Lotus 1-2-3 file viewer within Notes 5.x and 6.x :
http://www-1.ibm.com/support/docview.wss?uid=swg21285600

References

http://www.vupen.com/english/advisories/2007/4012
http://www-1.ibm.com/support/docview.wss?uid=swg21285600
http://www.coresecurity.com/index.php5?module=ContentMod&action=item&id=2008

Credits

Vulnerability reported by Sebastián Muñiz (Coresec).

ChangeLog

2007-11-27 : Initial release

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