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Date: Tue, 10 May 2011 09:28:30 +0200
From: Timo Warns <>
CC: Sebastian Krahmer <>, 
 "Steven M. Christey" <>
Subject: Re: CVE request: kernel: validate size of EFI GUID
 partition entries


from my point of view, these are different bugs:

CVE-2011-1577 addresses the overall header size used for a CRC32

CVE-2011-1776 addresses the size of partition entries used for
allocating a data structure.

Of course, one could argue that this is only one issue "missing input
validation on GUID partition tables".

Cheers, Timo

Am 10.05.2011 09:18, schrieb Sebastian Krahmer:
> Hi,
> Is this really different than what was assigned CVE-2011-1577 to?
> See or the text
> on the OSS mail on April 12th which reads exactly the same.
> Sebastian
> On Mon, May 09, 2011 at 03:01:06PM -0400, Josh Bressers wrote:
>> ----- Original Message -----
>>> The kernel automatically evaluates partition tables of storage
>>> devices.
>>> The code for evaluating GUID partitions (in fs/partitions/efi.c)
>>> contains a bug that can cause a kernel heap overflow on certain
>>> corrupted GUID partition tables.
>> Please use CVE-2011-1776
>> Thanks.
>> -- 
>>     JB

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