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Category:   Application (Generic)  >   libvirt Vendors:
libvirt File Descriptor Leak Lets Remote Users Deny Service
SecurityTracker Alert ID:  1028577
SecurityTracker URL:
CVE Reference:   CVE-2013-1962   (Links to External Site)
Date:  May 16 2013
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.0.5 and prior
Description:   A vulnerability was reported in libvirt. A remote user can cause denial of service conditions.

The storage pool manager does not properly manage file descriptors. A remote user with read-only privileges can list all volumes to cause libvirtd to consume available file descriptors and block others from using libvirtd service.

The vulnerability resides in 'daemon/remote.c'.

Edoardo Comar of IBM reported this vulnerability.

Impact:   A remote user can block others from using libvirtd service.
Solution:   The vendor has issued a source code fix, available at:;a=commit;h=ca697e90d5bd6a6dfb94bfb6d4438bdf9a44b739

Vendor URL: (Links to External Site)
Cause:   Resource error
Underlying OS:   Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
May 16 2013 (Red Hat Issues Fix) libvirt File Descriptor Leak Lets Remote Users Deny Service   (
Red Hat has issued a fix for Red Hat Enterprise Linux 6.

 Source Message Contents

Date:  Thu, 16 May 2013 22:34:29 +0000
Subject:  libvirt


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