3proxy select() Bitmap Remote Buffer Overflow Vulnerability

Bugtraq ID:	12351
Class:	Boundary Condition Error
CVE:
Remote:	Yes
Local:	No
Published:	Jan 24 2005 12:00AM
Updated:	Jan 24 2005 12:00AM
Credit:	Discovery is credited to 3APA3A <[email protected]>.
Vulnerable:	3proxy 3proxy 0.4
Not Vulnerable:

3proxy select() Bitmap Remote Buffer Overflow Vulnerability

3proxy is prone to a remote buffer overflow due to implementation of the select() system call. This issue could be exploited to cause a denial of service or potentially execute arbitrary code.

3proxy select() Bitmap Remote Buffer Overflow Vulnerability

The researcher responsible for discovering this issue has developed exploit code to leverage this vulnerability. The exploit code has not been released to the public.

3proxy select() Bitmap Remote Buffer Overflow Vulnerability

Solution:
This vulnerability was addressed in 3proxy 0.5b:


3proxy 3proxy 0.4

• 3proxy 3proxy 0.5b
  http://www.security.nnov.ru/soft/3proxy/

3proxy select() Bitmap Remote Buffer Overflow Vulnerability

References:

• 3proxy (3proxy)
  
• SECURITY.NNOV: Multiple applications fd_set structure bitmap array index overflo (3APA3A <[email protected]>)