Bug 845106 (CVE-2012-3447)

Summary: CVE-2012-3447 OpenStack-Nova: compute nodes disk image file corruption, incomplete fix for CVE-2012-3361 (OSSA 2012-011)
Product: [Other] Security Response Reporter: Kurt Seifried <kseifried>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: apevec, jrusnack, security-response-team
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-08-09 04:32:39 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 846624, 846625    
Bug Blocks:    
Attachments:
Description Flags
Patch for CVE-2012-3447 for essex
none
Patch for CVE-2012-3447 for folsom none

Description Kurt Seifried 2012-08-01 19:13:41 UTC 
Thierry Carrez <thierry> reports:

Pádraig Brady from Red Hat discovered that the fix implemented for
CVE-2012-3361 (OSSA-2012-008) was not covering all attack scenarios. By
crafting a malicious image with root-readable-only symlinks and
requesting a server based on it, an authenticated user could still
corrupt arbitrary files (all setups affected) or inject arbitrary files
(Essex and later setups with OpenStack API enabled and a libvirt-based
hypervisor) on the host filesystem, potentially resulting in full
compromise of that compute node.
Comment 1 Kurt Seifried 2012-08-01 19:17:13 UTC 
Created attachment 601803 [details]
Patch for CVE-2012-3447 for essex
Comment 2 Kurt Seifried 2012-08-01 19:17:37 UTC 
Created attachment 601804 [details]
Patch for CVE-2012-3447 for folsom
Comment 3 Tomas Hoger 2012-08-08 09:33:16 UTC 
References:

http://thread.gmane.org/gmane.comp.security.oss.general/8126
https://bugs.launchpad.net/nova/+bug/1031311
Comment 4 Tomas Hoger 2012-08-08 09:34:36 UTC 
Created openstack-nova tracking bugs for this issue

Affects: fedora-all [bug 846624]
Affects: epel-6 [bug 846625]