Thierry Carrez (email@example.com) 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
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.
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]
Created attachment 696351 [details]
Created attachment 696352 [details]
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
> 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.
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.