Fix outstanding security bugs in the Linux zlib implementations. See:

a) http://sources.redhat.com/ml/bug-gnu-utils/1999-06/msg00183.html
CAN-2005-2458

b) http://bugs.gentoo.org/show_bug.cgi?id=94584
CAN-2005-2459
Signed-off-by: Tim Yamin <plasmaroo@gentoo.org>
Signed-off-by: Tavis Ormandy <taviso@gentoo.org>
Signed-off-by: Chris Wright <chrisw@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>