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Date: Mon, 28 Feb 2011 15:28:47 -0800
From: Kees Cook <>
Subject: Re: CVE request: kernel: OOM-killer via argv expansion

On Mon, Feb 28, 2011 at 01:02:02PM -0800, Kees Cook wrote:
> On Mon, Feb 28, 2011 at 12:32:55PM -0800, Kees Cook wrote:
> > I think the flaw[1] with argv-expansion triggering the OOM-killer
> > incorrectly needs its own CVE.
> > 
> > While the stack guard page and the fixes[2] for CVE-2010-3858 certainly
> > improved things, argv expansion can still be tricked into OOM-killing the
> > entire system. Solutions were discussed on the original thread, but
> > were not finished. Recently a set of patches[3] has been re-proposed to fix
> > this issue. Regardless, it should probably get its own CVE assigned.
> > 
> > Thanks,
> > 
> > -Kees
> > 
> > [1]
> > [2]
> > [3]
> Sorry, Nelson Elhage pointed out to me that I missed the fix for this
> issue. The issue was been fixed with:
> This was already assigned as CVE-2010-4243
> Sorry for the noise, and thanks!

Wait, I will continue to make more noise. The upstream commit
3c77f845722158206a7209c45ccddc264d19319c does not handle the compat case,
which is trying to handle.

Does this need its own CVE?



Kees Cook
Ubuntu Security Team

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