CVE-2009-0561

Description

Integer overflow in Excel in Microsoft Office 2000 SP3, Office XP SP3, Office 2003 SP3, and Office 2004 and 2008 for Mac; Excel in 2007 Microsoft Office System SP1 and SP2; Open XML File Format Converter for Mac; Microsoft Office Excel Viewer 2003 SP3; Microsoft Office Excel Viewer; Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2; and Microsoft Office SharePoint Server 2007 SP1 and SP2 allows remote attackers to execute arbitrary code via an Excel file with a Shared String Table (SST) record with a numeric field that specifies an invalid number of unique strings, which triggers a heap-based buffer overflow, aka "Record Integer Overflow Vulnerability."

Category

9.3
CVSS
Severity: Critical
CVSS 2.0 •
EPSS 66.94% Top 5%
Vendor Advisory microsoft.com Vendor Advisory secunia.com Vendor Advisory vupen.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.vupen.com/english/advisories/2009/1540 vdb entry vendor advisory
http://secunia.com/secunia_research/2009-12/ vendor advisory
http://www.securityfocus.com/archive/1/504190/100/0/threaded mailing list
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=805 third party advisory
http://www.securitytracker.com/id?1022351 vdb entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5925 vdb entry signature
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-021 vendor advisory
http://www.us-cert.gov/cas/techalerts/TA09-160A.html third party advisory us government resource
http://osvdb.org/54957 vdb entry
http://www.securityfocus.com/bid/35245 vdb entry

Frequently Asked Questions

What is the severity of CVE-2009-0561?
CVE-2009-0561 has been scored as a critical severity vulnerability.
How to fix CVE-2009-0561?
To fix CVE-2009-0561, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2009-0561 being actively exploited in the wild?
It is possible that CVE-2009-0561 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~67% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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