PowerCHM '.HHP' File Stack Buffer Overflow Vulnerability

Bugtraq ID:	34263
Class:	Boundary Condition Error
CVE:
Remote:	Yes
Local:	No
Published:	Mar 26 2009 12:00AM
Updated:	Mar 30 2009 04:46PM
Credit:	Le Duc Anh, Bkis
Vulnerable:	Dawningsoft PowerCHM 5.7
Not Vulnerable:

PowerCHM '.HHP' File Stack Buffer Overflow Vulnerability

PowerCHM is prone to a stack-based buffer-overflow vulnerability because it fails to perform adequate boundary checks on user-supplied input.

Successfully exploiting this issue may allow remote attackers to execute arbitrary code in the context of the application. Failed exploit attempts will cause denial-of-service conditions.

PowerCHM 5.7 is vulnerable; other versions may also be affected.

PowerCHM '.HHP' File Stack Buffer Overflow Vulnerability

To exploit this issue, an attacker must entice an unsuspecting user to open a malicious file using the affected application.

Exploits are available:

• /data/vulnerabilities/exploits/34263.py
• /data/vulnerabilities/exploits/34263.pl

PowerCHM '.HHP' File Stack Buffer Overflow Vulnerability

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

PowerCHM '.HHP' File Stack Buffer Overflow Vulnerability

References:

• PowerCHM Homepage (Dawningsoft)
  
• [Bkis-05-2009] PowerCHM Stack-based Buffer Overflow (Bkis )