CVE-2009-0100 Memory corruption in n/a
Remote attackers can execute arbitrary code by tricking users into opening a crafted Excel spreadsheet with malformed objects.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2009-0100?
CVE-2009-0100 is a critical memory corruption vulnerability in Microsoft Office, published on 15 Apr 2009. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Microsoft Office Excel 2000 SP3, 2002 SP3, 2003 SP3, and 2007 SP1; Excel in Microsoft Office 2004 and 2008 for Mac; Microsoft Office Excel Viewer and Excel Viewer 2003 SP3; and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 do not properly parse the Excel spreadsheet file format, which allows remote attackers to execute arbitrary code via a crafted spreadsheet that contains a malformed object with "an offset and a two-byte value" that trigger a memory calculation error, aka "Memory Corruption Vulnerability."
Weakness: CWE-399
Which versions are affected by CVE-2009-0100?
It affects 4 products.
Products include Microsoft Office, Microsoft Office Compatibility Pack for Word Excel Ppt 2007, Microsoft Office Excel, Microsoft Office Excel Viewer.
How do I fix CVE-2009-0100?
No fix has been published for CVE-2009-0100 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2009-0100 being exploited?
There is no known exploitation of CVE-2009-0100 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Office
Sources
Also known as GHSA-4mhf-pw3q-x8rp.