Bug 1052957 (CVE-2014-1447)

Summary: CVE-2014-1447 libvirt: denial of service with keepalive
Product: [Other] Security Response Reporter: Petr Matousek <pmatouse>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: acathrow, berrange, bsarathy, clalancette, itamar, jforbes, jkurik, jyang, laine, libvirt-maint, pfrields, veillard, virt-maint
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: 2014-01-28 18:20:28 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: 1047577, 1054805, 1054807, 1054808    
Bug Blocks: 1052966, 1056484    

Description Petr Matousek 2014-01-14 13:51:07 UTC 
A race condition was found in the way libvirtd handled keepalive initialization requests when the connection is closed prior to establishing connection credentials.

An attacker able to establish a read-only connection to libvirtd could use this flaw to crash libvirtd, resulting in a denial of service.

Upstream patches:
http://libvirt.org/git/?p=libvirt.git;a=commit;h=173c291
http://libvirt.org/git/?p=libvirt.git;a=commit;h=066c8ef
Comment 1 Petr Matousek 2014-01-14 13:55:02 UTC 
Statement:

Not vulnerable. This issue did not affect the versions of libvirt as shipped with Red Hat Enterprise Linux 5.
Comment 2 Petr Matousek 2014-01-14 13:55:57 UTC 
CVE Request --
  http://seclists.org/oss-sec/2014/q1/82
Comment 4 Petr Matousek 2014-01-17 14:04:12 UTC 
Created libvirt tracking bugs for this issue:

Affects: fedora-all [bug 1054808]
Comment 5 errata-xmlrpc 2014-01-28 17:50:40 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2014:0103 https://rhn.redhat.com/errata/RHSA-2014-0103.html