BNC IRC Server Proxy select() Bit-Array Remote Buffer Overflow Vulnerability

Bugtraq ID:	12374
Class:	Boundary Condition Error
CVE:
Remote:	Yes
Local:	No
Published:	Jan 24 2005 12:00AM
Updated:	Jan 24 2005 12:00AM
Credit:	Discovery of this vulnerability is credited to 3APA3A <[email protected]>.
Vulnerable:	BNC BNC 2.8.4
Not Vulnerable:

BNC IRC Server Proxy select() Bit-Array Remote Buffer Overflow Vulnerability

BNC IRC Server Proxy 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.

BNC IRC Server Proxy select() Bit-Array Remote Buffer Overflow Vulnerability

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

BNC IRC Server Proxy select() Bit-Array Remote 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]>.

BNC IRC Server Proxy select() Bit-Array Remote Buffer Overflow Vulnerability

References:

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