#VU1366 Memory corruption in Microsoft Excel and Microsoft Excel for macOS - CVE-2009-0558

Vulnerability identifier: #VU1366

Vulnerability risk: High

CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

CVE-ID: CVE-2009-0558

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
Microsoft Excel
Microsoft Excel for macOS

Software vendor:
Microsoft

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to array indexing error when parsing the Excel spreadsheet file format. A remote attacker can create a specially crafted Excel file containing a malformed object record, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system with privileges of the current user.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Install update from vendor's website:

Microsoft Office Excel 2000 Service Pack 3:
https://www.microsoft.com/downloads/details.aspx?familyid=dd16e243-b8e2-4afb-86b6-4d60214598eb
http://go.microsoft.com/fwlink/?LinkID=143568
Microsoft Office for Mac 2004:
https://www.microsoft.com/downloads/details.aspx?FamilyID=5557bfb7-ebb4-4c42-8042-41e830c4e550
http://go.microsoft.com/fwlink/?LinkID=143568
Microsoft Office for Mac 2008:
https://www.microsoft.com/downloads/details.aspx?FamilyID=58326da2-eb75-4b42-b1bc-e70319defb58
http://go.microsoft.com/fwlink/?LinkID=143568
Microsoft Office Open XML File Converter for MAC:
https://www.microsoft.com/downloads/details.aspx?FamilyID=9d6d9eaa-8442-4184-8886-faab2803bde6
http://go.microsoft.com/fwlink/?LinkId=131481

• https://technet.microsoft.com/en-us/library/security/ms09-021.aspx