Date: Tue, 8 Mar 2016 20:16:39 +0000 From: Tristan Cacqueray <tdecacqu@...hat.com> To: oss-security@...ts.openwall.com Subject: [OSSA 2016-007] Nova host data leak through resize/migration (CVE-2016-2140) =========================================================== OSSA-2016-007: Nova host data leak through resize/migration =========================================================== :Date: March 08, 2016 :CVE: CVE-2016-2140 Affects ~~~~~~~ - Nova: <=2015.1.3, >=12.0.0 <=12.0.2 Description ~~~~~~~~~~~ Matthew Booth from Red Hat reported a vulnerability in Nova instance resize/migration. By overwriting an ephemeral or root disk with a malicious image before requesting a resize, an authenticated user may be able to read arbitrary files from the compute host. Only setups using libvirt driver with raw storage and setting "use_cow_images = False" (not default) are affected. Patches ~~~~~~~ - https://review.openstack.org/289960 (Kilo) - https://review.openstack.org/289958 (Liberty) - https://review.openstack.org/289957 (Mitaka) Credits ~~~~~~~ - Matthew Booth from Red Hat (CVE-2016-2140) References ~~~~~~~~~~ - https://bugs.launchpad.net/bugs/1548450 - http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2140 Notes ~~~~~ - This fix will be included in future 2015.1.3 (kilo) and 12.0.3 (liberty) releases. -- Tristan Cacqueray OpenStack Vulnerability Management Team Download attachment "signature.asc" of type "application/pgp-signature" (474 bytes)
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