Convex 3D Buffer Overflow Vulnerability

Bugtraq ID:	11995
Class:	Boundary Condition Error
CVE:
Remote:	Yes
Local:	No
Published:	Dec 16 2004 12:00AM
Updated:	Dec 16 2004 12:00AM
Credit:	Ariel Berkman discovered this vulnerability.
Vulnerable:	Alex Dunaevsky Convex 3D 0.8 pre1
Not Vulnerable:

Convex 3D Buffer Overflow Vulnerability

It is reported that Convex 3D is susceptible to a stack-based buffer overflow vulnerability. This issue is due to a failure of the application to properly check the bounds of user-supplied image data prior to copying it into a fixed-size memory buffer.

This vulnerability allows remote attackers to alter the proper flow of execution of the application, potentially resulting in the execution of attacker-supplied machine code in the context of the application attempting to read a malicious file.

Convex 3D Buffer Overflow Vulnerability

An example 3DS file has been provided:

• /data/vulnerabilities/exploits/7.3ds.zip

Convex 3D Buffer Overflow Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Convex 3D Buffer Overflow Vulnerability

References:

• [remote] [control] Convex 3D 0.8pre1 readObjectChunk overflows objectname buffer ("D. J. Bernstein" )
  
• Convex 3D Home Page (Alex Dunaevsky)