** Changed in: nova/havana Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1206081
Title: [OSSA 2013-029] Unchecked qcow2 root disk sizes DoS Status in OpenStack Compute (Nova): Fix Released Status in OpenStack Compute (nova) folsom series: Won't Fix Status in OpenStack Compute (nova) grizzly series: Fix Committed Status in OpenStack Compute (nova) havana series: Fix Released Status in OpenStack Security Advisories: Fix Released Bug description: When doing QA for SUSE on bug 1177830 I found that the fix is incomplete, because it assumed that the cached image would be mostly sparse. However, I can easily create non-sparse small compressed qcow2 images with perl -e 'for(1..11000){print "x" x 1024000}' > img qemu-img convert -c -O qcow2 img img.qcow2 glance image-create --name=11gb --is-public=True --disk-format=qcow2 --container-format=bare < img.qcow2 nova boot --image 11gb --flavor m1.small testvm which (in Grizzly and Essex) results in one (or two in Essex) 11GB large files being created in /var/lib/nova/instances/_base/ still allowing attackers to fill up disk space of compute nodes because the size check is only done after the uncompressing / caching To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1206081/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp