Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Mon, 22 Dec 2008 09:45:07 +0800
From: "Eugene Teo" <eugeneteo@...nel.sg>
To: oss-security@...ts.openwall.com
Cc: "Steven M. Christey" <coley@...us.mitre.org>
Subject: Re: CVE request: kernel: watchdog: ib700wdt.c - buffer_underflow bug

On Wed, Dec 17, 2008 at 11:36 PM, Marcus Meissner <meissner@...e.de> wrote:
> On Wed, Dec 17, 2008 at 10:14:27AM +0800, Eugene Teo wrote:
>> On Wed, Dec 17, 2008 at 10:00 AM, Steven M. Christey
>> <coley@...us.mitre.org> wrote:
>> >
>> > On Wed, 10 Dec 2008, Eugene Teo wrote:
>> >
>> >> Steve, here's another one that needs a CVE name. Thanks!
>> >>
>> >> http://bugzilla.kernel.org/show_bug.cgi?id=11399
>> >
>> > Similar to the other issue, is this IOCTL reachable by anyone malicious?
>>
>> From what I can see in ibwdt_ioctl(), it does not restrict access to
>> unprivileged users.
>
> Again, depends on how the device node is created I think. Not sure
> what mode udev hands out for those.

I discussed this with Wim, and it depends on the permissions for the
miscdev device, /dev/watchdog. On Fedora, it's accessible by root user
only.

Thanks, Eugene

Powered by blists - more mailing lists

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.