CVE-2006-1540 Memory corruption in n/a
Attackers can execute arbitrary code or cause denial of service in Microsoft Office via crafted documents exploiting memory corruption flaws.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2006-1540?
CVE-2006-1540 is a critical memory corruption vulnerability in Microsoft Office, published on 30 Mar 2006. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
MSO.DLL in Microsoft Office 2000, Office XP (2002), and Office 2003 allows user-assisted attackers to cause a denial of service and execute arbitrary code via multiple attack vectors, as originally demonstrated using a crafted document record with a malformed string, as demonstrated by replacing a certain "01 00 00 00" byte sequence with an "FF FF FF FF" byte sequence, possibly causing an invalid array index, in (1) an Excel .xls document, which triggers an access violation in ole32.dll; (2) an Excel .xlw document, which triggers an access violation in excel.exe; (3) a Word document, which triggers an access violation in mso.dll in winword.exe; and (4) a PowerPoint document, which triggers an access violation in powerpnt.txt. NOTE: after the initial disclosure, this issue was demonstrated by triggering an integer overflow using an inconsistent size for a Unicode "Sheet Name" string.
Weakness: CWE-94
Which versions are affected by CVE-2006-1540?
It affects 1 product.
Products include Microsoft Office.
How do I fix CVE-2006-1540?
No fix has been published for CVE-2006-1540 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-2006-1540 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-1540 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Microsoft Office
Sources
Also known as GHSA-94cj-9f3f-7q8j.