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Red Hat Bugzilla – Attachment 687206 Details for
Bug 902629
CVE-2013-0208 openstack-nova: Boot from volume allows access to random volumes
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[patch]
essex-CVE-2013-0208-1069904-v2.patch
essex-CVE-2013-0208-1069904-v2.patch (text/plain), 2.57 KB, created by
Kurt Seifried
on 2013-01-25 05:10:59 UTC
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Description:
essex-CVE-2013-0208-1069904-v2.patch
Filename:
MIME Type:
Creator:
Kurt Seifried
Created:
2013-01-25 05:10:59 UTC
Size:
2.57 KB
patch
obsolete
>From e28269a34902ba43718622f454341c132fd14995 Mon Sep 17 00:00:00 2001 >From: =?UTF-8?q?P=C3=A1draig=20Brady?= <pbrady@redhat.com> >Date: Thu, 24 Jan 2013 10:45:19 +0000 >Subject: [PATCH] disallow boot from volume from specifying arbitrary volumes > >Fix a vulnerability in volume attachment in nova-volume, affecting the >boot-from-volume feature. By passing a specific volume ID, an >authenticated user may be able to boot from a volume they don't own, >potentially resulting in full access to that 3rd-party volume. > >Fixes bug: 1069904, CVE-2013-0208 >Change-Id: I5f7c8d20d3ebf33ce1ce64bf0a8418bd2b5a6411 >--- > nova/compute/api.py | 16 ++++++++++++++++ > nova/exception.py | 14 ++++++++++++++ > 2 files changed, 30 insertions(+) > >diff --git a/nova/compute/api.py b/nova/compute/api.py >index f64a10c..633e282 100644 >--- a/nova/compute/api.py >+++ b/nova/compute/api.py >@@ -390,6 +390,22 @@ class API(BaseAPI): > > LOG.debug(_("Going to run %s instances...") % num_instances) > >+ # Validate the correct devices have been specified >+ for bdm in block_device_mapping: >+ # NOTE(vish): For now, just make sure the volumes are accessible. >+ snapshot_id = bdm.get('snapshot_id') >+ volume_id = bdm.get('volume_id') >+ if volume_id is not None: >+ try: >+ self.volume_api.get(context, volume_id) >+ except Exception: >+ raise exception.InvalidBDMVolume(id=volume_id) >+ elif snapshot_id is not None: >+ try: >+ self.volume_api.get_snapshot(context, snapshot_id) >+ except Exception: >+ raise exception.InvalidBDMSnapshot(id=snapshot_id) >+ > if create_instance_here: > instance = self.create_db_entry_for_new_instance( > context, instance_type, image, base_options, >diff --git a/nova/exception.py b/nova/exception.py >index 107d926..1f1fa53 100644 >--- a/nova/exception.py >+++ b/nova/exception.py >@@ -309,6 +309,20 @@ class InstanceInvalidState(Invalid): > "%(method)s while the instance is in this state.") > > >+class InvalidBDM(Invalid): >+ message = _("Block Device Mapping is Invalid.") >+ >+ >+class InvalidBDMSnapshot(InvalidBDM): >+ message = _("Block Device Mapping is Invalid: " >+ "failed to get snapshot %(id)s.") >+ >+ >+class InvalidBDMVolume(InvalidBDM): >+ message = _("Block Device Mapping is Invalid: " >+ "failed to get volume %(id)s.") >+ >+ > class InstanceNotRunning(Invalid): > message = _("Instance %(instance_id)s is not running.") > >-- >1.8.1 >
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