CVE-2008-4255

Heap-based buffer overflow in mscomct2.ocx (aka Windows Common ActiveX control or Microsoft Animation ActiveX control) in Microsoft Visual Basic 6.0, Visual…

published December 10, 2008

Patch now

High probability of exploitation

NVD has not assigned a CVSS score to this record. It sits in the 99.0th percentile for exploit probability.

CVSS
—
EPSS
54%
Percentile
99.0
In the wild
Unconfirmed
What it is

⚠️ Watch out for a crafty buffer overflow! An attacker can leverage a specially crafted AVI file to exploit the Windows Common ActiveX control and execute arbitrary code. 🎥 Think of this vulnerability like a restaurant with a kitchen that doesn’t check the size of the delivery order—if they receive an oversized batch of ingredients, chaos can ensue, potentially ruining meals and endangering diners' safety. If exploited, an attacker could gain control of the system running the vulnerable software, allowing them to execute malicious commands and access sensitive information. While this vulnerability hasn't been extensively exploited, the potential for damage is significant, as it opens the door for an attacker to wreak havoc.

Put simply

Think of this vulnerability like a restaurant with a kitchen that doesn’t check the size of the delivery order—if they receive an oversized batch of ingredients, chaos can ensue, potentially ruining meals and endangering diners' safety. This heap-based buffer overflow occurs in mscomct2.ocx, allowing attackers to manipulate stream lengths in AVI files. This can trigger memory corruption, leading to arbitrary code execution without user interaction.

What to do

If exploited, an attacker could gain control of the system running the vulnerable software, allowing them to execute malicious commands and access sensitive information. While this vulnerability hasn't been extensively exploited, the potential for damage is significant, as it opens the door for an attacker to wreak havoc. To protect against this vulnerability, ensure that all affected software, such as Microsoft Visual Basic 6.0 and Visual Studio .NET versions, are updated to the latest patches. Regularly audit software configurations to limit the use of outdated ActiveX controls. 🛡️ You've got this! Stay proactive, keep your software updated, and you'll be a security hero in no time! 🦸

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.53703 · 99.0th percentile
Published
2008-12-10T13:33Z
EPSS history
Timeline
  • 10 DEC 13:33Z
    Heap-based buffer overflow in mscomct2.ocx (aka Windows Common ActiveX control or Microsoft Animation ActiveX control) in Microsoft Visual Basic 6.0, Visual…
    cvelistv5