oss-security - Re: [Drbd-dev] CVE request: kernel: connector security bypass

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Message-ID: <20100312093452.GI22282@soda.linbit>
Date: Fri, 12 Mar 2010 10:34:52 +0100
From: Lars Ellenberg <lars.ellenberg@...bit.com>
To: dann frazier <dannf@...nf.org>
Cc: "Steven M. Christey" <coley@...us.mitre.org>,
	oss-security@...ts.openwall.com, drbd-dev@...ts.linbit.com,
	drbd-user@...ts.linbit.com
Subject: Re: [Drbd-dev] CVE request: kernel: connector
 security bypass

On Thu, Mar 11, 2010 at 03:18:08PM -0700, dann frazier wrote:
> On Mon, Nov 02, 2009 at 11:37:21AM +0000, Mark J Cox wrote:
> > On Mon, 2 Nov 2009, Eugene Teo wrote:
> > 
> > >1/ uvesafb/connector: Disallow unprivileged users to send netlink packets
> > >upstream commit: cc44578b5a508889beb8ae3ccd4d2bbdf17bc86c
> > >introduced in v2.6.24-rc1; fixed in v2.6.32-rc3
> > >
> > >2/ pohmelfs/connector: Disallow unprivileged users to configure pohmelfs
> > >upstream commit: 98a5783af02f4c9b87b676d7bbda6258045cfc76
> > >(staging/experimental)
> > >
> > >3/ dst/connector: Disallow unprivileged users to configure dst
> > >upstream commit: 5788c56891cfb310e419c4f9ae20427851797431
> > >(staging/experimental)
> > >
> > >4/ dm/connector: Only process connector packages from privileged processes
> > >upstream commit: 24836479a126e02be691e073c2b6cad7e7ab836a
> > >introduced in v2.6.31-rc1; fixed in v2.6.32-rc3
> > 
> > >References:
> > >http://secunia.com/advisories/37113/
> > >http://xorl.wordpress.com/2009/10/31/linux-kernel-multiple-capabilities-missing-checks/
> 
> Debian provides an out-of-tree drbd module (drbd8), and it appears to
> be affected by this issue as well. I assume we need to allocate an
> additional CVE ID for it?

Maybe just go to current upstream drbd 8.3.7?

> Here's a link to the upstream fix:
> http://git.drbd.org/?p=drbd-8.3.git;a=commitdiff;h=71915b0d267392c77fe0ae2309535333026cef66
> 
> The in-tree version that got merged for 2.6.33 looks fine.

-- 
: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com

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