From: "Daniel P. Berrange" <berrange@redhat.com>
To: Steven Hu <learn.hu@gmail.com>
Cc: xen-devel@lists.xensource.com
Subject: Re: Why Xen 3.1.0 disable the qemu control monitor
Date: Tue, 12 Jun 2007 12:40:41 +0100 [thread overview]
Message-ID: <20070612114041.GA3031@redhat.com> (raw)
In-Reply-To: <b49ba280706112219l3b7a4f76hb1ec7f1d6a327b1@mail.gmail.com>
On Tue, Jun 12, 2007 at 01:19:04PM +0800, Steven Hu wrote:
> Hello, all
> I found that in Xen 3.1.0 I can't press Ctrl+ALT+2 to open the console
> of qemu to do some administration. The root cause is that the value of
> "monitor_device " is "null" now. In Xen 3.0.4, the value is "vc". If
> there is no control console, how can I add a usb device to the guest
> OS. Could you guys tell me why we disable the console in Xen 3.1.0.
> thank.
It is a huge security hole if using the VNC server to access the guest
console. Anyone who can access the VNC server would be able to trivially
root the entire Dom0 host if the monitor is enabled. See CVE 2007 0998
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0998
Dan.
--
|=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=|
|=- Perl modules: http://search.cpan.org/~danberr/ -=|
|=- Projects: http://freshmeat.net/~danielpb/ -=|
|=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|
prev parent reply other threads:[~2007-06-12 11:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-12 5:19 Why Xen 3.1.0 disable the qemu control monitor Steven Hu
2007-06-12 5:58 ` James Harper
2007-06-12 11:40 ` Daniel P. Berrange [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20070612114041.GA3031@redhat.com \
--to=berrange@redhat.com \
--cc=learn.hu@gmail.com \
--cc=xen-devel@lists.xensource.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.