Re: [stable] Re: [patch 6/6] [NETFILTER]: Fix another crash inip_nat_pptp (CVE-2006-0037)

[Andrew Morton]

Greg KH <greg@xxxxxxxxx> wrote:
>
> On Wed, Feb 08, 2006 at 01:35:41PM +0100, Holger Eitzenberger wrote:
> > On Fri, Jan 27, 2006 at 06:18:35PM -0800, Greg KH wrote:
> > 
> > >  	DEBUGP("altering call id from 0x%04x to 0x%04x\n",
> > > -		ntohs(*cid), ntohs(new_callid));
> > > +		ntohs(*(u_int16_t *)pptpReq + cid_off), ntohs(new_callid));
> > 
> > Note that this fix introduces another bug in the above use DEBUGP
> > statement, as there is (u_int16_t *) ptr arithmetic used, whereas
> > cid_off is a byte offset.
> > 
> > A fix for that was send a few weeks ago on netfilter-devel.
> 
> Great, care to forward it to stable@xxxxxxxxxx so we can get it in the
> next release?
> 

I have a copy of the patch and I'll cc stable@ on it.  Although afaik this
bug just causes wrong debug info to come out, so I don't think it's
terribly important (?)

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