Bug 1259350 (CVE-2015-5247)

Summary: CVE-2015-5247 libvirt: denial of service when volume creation fails on NFS pool
Product: [Other] Security Response Reporter: Vasyl Kaigorodov <vkaigoro>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: aavati, berrange, dkholia, eblake, jdenemar, jsuchane, knoel, nlevinki, pkrempa, rbalakri, rfortier, security-response-team, sgirijan, smohan, ssaha, vbellur
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2016-10-20 09:14:20 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1253609    
Bug Blocks: 1259352    

Description Vasyl Kaigorodov 2015-09-02 12:37:52 UTC 
It was reported that libvirt did not perform a proper clean up after volume creation fails on an NFS pool with "root_squash" option enabled.
This leaves the NFS pool in damaged state.
Comment 1 Eric Blake 2015-09-02 14:07:23 UTC 
Fix is public as of 2015-08-02:
https://www.redhat.com/archives/libvir-list/2015-September/msg00018.html
Comment 2 Eric Blake 2015-09-12 15:24:43 UTC 
Libvirt Security Notice:
http://security.libvirt.org/2015/0003.html
Comment 3 Adam Mariš 2015-09-15 08:19:14 UTC 
Upstream patches were released, see the Security Notice above.