CVE-2009-0133 Memory corruption in n/a

Critical 10.0 Published 15 Jan 2009 Updated 7 Aug 2024

Attackers can execute arbitrary code by tricking users into opening a malicious .hhp file in Microsoft HTML Help Workshop.

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-2009-0133?

CVE-2009-0133 is a critical memory corruption vulnerability in n/a, published on 15 Jan 2009. 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

Buffer overflow in Microsoft HTML Help Workshop 4.74 and earlier allows context-dependent attackers to execute arbitrary code via a .hhp file with a long "Index file" field, possibly a related issue to CVE-2006-0564.

Weakness: CWE-119

Which versions are affected by CVE-2009-0133?

It affects 1 product.

Products include Microsoft Html Help Workshop.

How do I fix CVE-2009-0133?

No fix has been published for CVE-2009-0133 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-2009-0133 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-0133 exists.

Public exploit code: 1 Metasploit module and 7 Exploit-DB entries.

Sources

Also known as GHSA-fpp9-rfqj-mpm6.