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Date: Tue, 30 May 2017 14:52:58 +0200
From: Florian Weimer <>
To:, Daniel Micay <>
Cc: Roee Hay <>
Subject: Re: Linux kernel: stack buffer overflow with
 controlled payload in get_options() function

On 05/30/2017 01:51 PM, Daniel Micay wrote:
> It's unreasonable to consider the kernel line untrusted. A CVE being
> issued for one of these issues didn't make sense.

It's a potential Secure Boot bypass, so it matters in some theoretical
sense to some downstreams which carry those Secure Boot patches.

(Although I have yet to see anyone to revoke a signature on a kernel
with known root-to-ring-0 escalations, so the practical impact isn't
large because an attack could still downgrade to a kernel with an
exploitable vulnerability.)


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