Thierry Carrez (thierry) reports: Title: Information leak and Denial of Service using XML entities Reporter: Jonathan Murray (NCC Group), Joshua Harlow (Yahoo!), Stuart Stent Products: Keystone, Nova, Cinder Affects: All versions Description: Jonathan Murray from NCC Group, Joshua Harlow from Yahoo! and Stuart Stent independently reported a vulnerability in the parsing of XML requests in Keystone, Nova and Cinder. By using entities in XML requests, an unauthenticated attacker may consume excessive resources on the Keystone, Nova or Cinder API servers, resulting in a denial of service and potentially a crash. Authenticated attackers may also leverage XML entities to read the content of a local file on the Keystone API server. This only affects servers with XML support enabled. Proposed patches: See attached patches for current development tree (Grizzly) and the Folsom and Essex series for each of the affected projects. Unless a flaw is discovered in them, these proposed patches will be merged to master, stable/folsom and stable/essex branches on the public disclosure date.
Created attachment 696350 [details] keystone-essex-CVE-2013-0278.patch
Created attachment 696351 [details] keystone-folsom-CVE-2013-0278.patch
Created attachment 696352 [details] keystone-grizzly-CVE-2013-0278.patch
Published today http://lists.openstack.org/pipermail/openstack-announce/2013-February/000078.html but note upstream went with different CVEs: CVE-2013-1664, CVE-2013-1665 Which CVE# do you want me to use in RPM changelog?
As per http://seclists.org/oss-sec/2013/q1/340 please REJECT CVE-2013-0278, CVE-2013-0279 and CVE-2013-0280 and use CVE-2013-1664, CVE-2013-1665 for OpenStack.
(In reply to comment #6) > Published today > http://lists.openstack.org/pipermail/openstack-announce/2013-February/000078. > html > but note upstream went with different CVEs: CVE-2013-1664, CVE-2013-1665 > > Which CVE# do you want me to use in RPM changelog? Mitre is actually formulating new CVE assigning policy for messes like this, once that is done I will be assigning CVEs and this will be sorted.
Acknowledgements: Red Hat would like to thank the OpenStack project for reporting these issues. Upstream acknowledges Jonathan Murray (NCC Group), Joshua Harlow (Yahoo!), and Stuart Stent as the original, independent reporters of these issues.
*** This bug has been marked as a duplicate of bug 913808 ***
openstack-keystone-2012.2.3-3.fc18 has been pushed to the Fedora 18 stable repository. If problems still persist, please make note of it in this bug report.
openstack-keystone-2012.2.3-4.el6 has been pushed to the Fedora EPEL 6 stable repository. If problems still persist, please make note of it in this bug report.