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
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