Microsoft Excel BIFF File Format Named Graph Record Parsing Stack Overflow Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Office Excel. Exploitation requires that the attacker coerce the target into opening a malicious .XLS file.
The specific flaw exists within the parsing of the BIFF file format used by Microsoft Excel. During the processing of a malformed Named Graph record, user-supplied data may be copied to the stack unchecked thereby leading to an exploitable stack-based buffer overflow.
Additional Details
Microsoft has issued an update to correct this vulnerability. More details can be found at:
http://www.microsoft.com/technet/security/bulletin/ms07-023.mspx
Disclosure Timeline
- 2006-11-16 - Vulnerability reported to vendor
- 2007-05-08 - Coordinated public release of advisory
Credit
Manuel Santamarina Suarez
