oss-security - Re: Re: CVE request: kernel: applicom: fix an unchecked user ioctl range

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Date: Wed, 17 Dec 2008 16:32:07 +0100
From: Marcus Meissner <meissner@...e.de>
To: oss-security@...ts.openwall.com
Cc: Eugene Teo <eugeneteo@...nel.sg>,
	"Steven M. Christey" <coley@...us.mitre.org>
Subject: Re: Re: CVE request: kernel: applicom: fix an unchecked user ioctl range

On Tue, Dec 16, 2008 at 09:24:32PM -0500, Steven M. Christey wrote:
> 
> On Wed, 17 Dec 2008, Eugene Teo wrote:
> 
> > Hmm, there's a comment in the ac_ioctl() that the device for this is
> > only accessible by root, so if out of range may not matter. Hmm. So,
> > maybe, maybe not.
> 
> Our current approach would be, probably not.

I guess the accessibility very much depends on the /dev/ac* device
permissions here. For a multiport serial card I guess root/tty only.

Ciao, Marcus

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