OpenConnect VPN Gateway Stack Based Buffer Overflow Vulnerability

Bugtraq ID:	57884
Class:	Input Validation Error
CVE:	CVE-2012-6128
Remote:	Yes
Local:	No
Published:	Oct 28 2012 12:00AM
Updated:	Apr 16 2015 05:48PM
Credit:	Kevin Cernekee
Vulnerable:	Gentoo Linux Debian Linux 6.0 sparc Debian Linux 6.0 s/390 Debian Linux 6.0 powerpc Debian Linux 6.0 mips Debian Linux 6.0 ia-64 Debian Linux 6.0 ia-32 Debian Linux 6.0 arm Debian Linux 6.0 amd64
Not Vulnerable:

OpenConnect VPN Gateway Stack Based Buffer Overflow Vulnerability

OpenConnect is prone to a stack-based buffer-overflow vulnerability because it fails to properly bounds check the user-supplied data before copying it into an insufficiently sized buffer.

An attacker can exploit this issue to execute arbitrary code in the context of the affected application. Failed exploit attempts will likely result in denial-of-service conditions.

OpenConnect VPN Gateway Stack Based Buffer Overflow Vulnerability

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

OpenConnect VPN Gateway Stack Based Buffer Overflow Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

OpenConnect VPN Gateway Stack Based Buffer Overflow Vulnerability

References:

• OpenConnect Homepage (OpenConnect)