Workaround for procfs (was Re: HEADS UP: upcoming security advisories)

[Jacques A. Vidrine]

On Thu, Oct 02, 2003 at 12:08:44PM -0500, Jacques A. Vidrine wrote:
>  FreeBSD-SA-03:17.procfs
>      Several similar bugs involving integer arithmetic underflows
>      or overflows were identified, again by Joost Pol.  These bugs
>      could also lead to kernel memory disclosure or system panic.
>      Fixes for this issue are in -CURRENT and -STABLE.  The security
>      branches will be addressed during the rest of the day.
>      <URL: http://www.pine.nl/press/pine-cert-20030902.txt >

Regarding this issue:  A simple workaround is to unmount /proc.  Execute
the following command as root:

  umount -a -t procfs

Also, remove or comment out any lines in fstab(5) that reference
`procfs', so that it will not be re-mounted at next reboot.

Cheers,
-- 
Jacques Vidrine   . NTT/Verio SME      . FreeBSD UNIX       . Heimdal
nectar at celabo.org . jvidrine at verio.net . nectar at freebsd.org . nectar at kth.se