Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Tue, 12 Apr 2011 11:36:21 +0200
From: Timo Warns <warns@...-sense.de>
To: oss-security@...ts.openwall.com
CC: Eugene Teo <eugene@...hat.com>, Josh Bressers <bressers@...hat.com>
Subject: Re: CVE request: kernel: fs/partitions: Kernel heap
 overflow via corrupted LDM partition tables

Am 24.02.2011 02:25, schrieb Eugene Teo:
> On 02/24/2011 03:59 AM, Josh Bressers wrote:
>> ----- Original Message -----
>>>
>>> The kernel automatically evaluates partition tables of storage devices.
>>> The code for evaluating LDM partitions (in fs/partitions/ldm.c) contains
>>> a bug that allows to overflow the kernel heap. It may be possible to
>>> escalate privileges by exploiting this bug.
>>>
>>> (This bug is distinct from the LDM bug reported by Eugene Teo on
>>> 2011-02-23.)
>>>
>>> This should affect both, 2.4 and 2.6 kernel. As a prerequisite,
>>> CONFIG_LDM_PARTITION needs to be set.
>>>
>>
>> Can you point to a commit message or something else that is public? It's
>> not clear how this differs from Eugene's request.
> 
> As far as I can tell, it's not public yet. Timo will follow-up once his
> patch is accepted.

A patch is now available at
http://www.spinics.net/lists/mm-commits/msg83181.html

Best regards, Timo

Powered by blists - more mailing lists

Your e-mail address:

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.