GLEG Advisory

Name:          NetBSD kernel swapctl(2) vulnerability
Date:          11 June 2004
CVE candidate: not assigned
Author:        GLEG Ltd.

Description:

There exists a integer handling vulnerability in NetBSD swapctl(2) system call.
It seems that this vulnerability can not be exploited to gain super-user
privilegies, but any local attacker can crash the kernel.

Fix:

It is available in CVS - http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/uvm/uvm_swap.c.diff?r1=1.85&r2=1.85.2.1

History:

The vulnerability has been discovered several months ago by GLEG team during NetBSD kernel source code au
dit.
It has been made availabe to VulnDisco clients two months ago.