Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Fri, 03 Jun 2011 14:47:39 +0800
From: Eugene Teo <eugene@...hat.com>
To: oss-security@...ts.openwall.com
CC: Josh Bressers <bressers@...hat.com>, Timo Warns <warns@...-sense.de>,
        coley <coley@...re.org>
Subject: Re: CVE request: kernel: fs/partitions: Kernel heap
 overflow via corrupted LDM partition tables

On 02/25/2011 04:22 AM, Josh Bressers wrote:
> 
> ----- Original Message -----
>> On Thu, 2011-02-24 at 09:25 +0800, Eugene Teo wrote:
>>> 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.
[...]
> I would still like something along the lines of a proposed patch. I believe
> you folks (as you're much brighter than me), but I still don't quite grasp
> the difference. I suspect there is enough public information for MITRE to
> public a CVE though, so please use CVE-2011-1017.

It was reported that the fix for this is insufficient. I have assigned
CVE-2011-2182 to this. See https://lkml.org/lkml/2011/5/6/407.

Timo, can you please post the patch here once you have submitted it to
lkml for review. Thanks.

Eugene

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.