Patch  oval:org.mitre.oval:def:28313
RHSA-2014:1873 -- libvirt security and bug fix update (Moderate)  

The libvirt library is a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remote management of virtualized systems.
An out-of-bounds read flaw was found in the way libvirt's qemuDomainGetBlockIoTune() function looked up the disk index in a non-persistent (live) disk configuration while a persistent disk configuration was being indexed. A remote attacker able to establish a read-only connection to libvirtd could use this flaw to crash libvirtd or, potentially, leak memory from the libvirtd process. (CVE-2014-3633)
A denial of service flaw was found in the way libvirt's virConnectListAllDomains() function computed the number of used domains. A remote attacker able to establish a read-only connection to libvirtd could use this flaw to make any domain operations within libvirt unresponsive. (CVE-2014-3657)
It was found that when the VIR_DOMAIN_XML_MIGRATABLE flag was used, the QEMU driver implementation of the virDomainGetXMLDesc() function could bypass the restrictions of the VIR_DOMAIN_XML_SECURE flag. A remote attacker able to establish a read-only connection to libvirtd could use this flaw to leak certain limited information from the domain XML data. (CVE-2014-7823)
The CVE-2014-3633 issue was discovered by Luyao Huang of Red Hat.
This update also fixes the following bug:
When dumping migratable XML configuration of a domain, libvirt removes some automatically added devices for compatibility with older libvirt releases. If such XML is passed to libvirt as a domain XML that should be used during migration, libvirt checks this XML for compatibility with the internally stored configuration of the domain. However, prior to this update, these checks failed because of devices that were missing (the same devices libvirt removed). As a consequence, migration with user-supplied migratable XML failed. Since this feature is used by OpenStack, migrating QEMU/KVM domains with OpenStack always failed. With this update, before checking domain configurations for compatibility, libvirt transforms both user-supplied and internal configuration into a migratable form (automatically added devices are removed) and checks those instead. Thus, no matter whether the user-supplied configuration was generated as migratable or not, libvirt does not err about missing devices, and migration succeeds as expected. (BZ#1155564)
All libvirt users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, libvirtd will be restarted automatically.
Create Date: 2014-12-08 Last Update Date: 2015-01-26

Affected Platforms/Products

Affected Products (CPE + CVE references)
Platforms: unix (from OVAL definitions) Products: unix
  • CentOS Linux 6
  • Red Hat Enterprise Linux 6
  • libvirt

References

Criteria

The patch should be installed
IF : Any one of the following are true
IF : All of the following are true Red Hat Enterprise Linux 6 release section
Prerequisites (Extended Definitions)
The operating system installed on the system is Red Hat Enterprise Linux 6 oval:org.mitre.oval:def:20273
IF : libvirt-debuginfo is earlier than 0:0.10.2-46.el6_6.2
Linux : RPM Test :  libvirt-debuginfo is earlier than 0:0.10.2-46.el6_6.2 
At least one of the objects listed below must exist on the system (Existence check)
Linux : RPM Package libvirt-debuginfo package information
libvirt-debuginfo
RPM Version less than 0:0.10.2-46.el6_6.2 (datatype=evr_string)
version is earlier than 0:0.10.2-46.el6_6.2 linux : rpminfo_state 
IF : All of the following are true Red Hat Enterprise Linux 6 and CentOS Linux 6 release section
IF : Any one of the following are true Packages match section
IF : libvirt-lock-sanlock is earlier than 0:0.10.2-46.el6_6.2
Linux : RPM Test :  libvirt-lock-sanlock is earlier than 0:0.10.2-46.el6_6.2 
At least one of the objects listed below must exist on the system (Existence check)
Linux : RPM Package 
libvirt-lock-sanlock
RPM Version less than 0:0.10.2-46.el6_6.2 (datatype=evr_string)
version is earlier than 0:0.10.2-46.el6_6.2 linux : rpminfo_state 
IF : libvirt-python is earlier than 0:0.10.2-46.el6_6.2
Linux : RPM Test :  libvirt-python is earlier than 0:0.10.2-46.el6_6.2 
At least one of the objects listed below must exist on the system (Existence check)
Linux : RPM Package 
libvirt-python
RPM Version less than 0:0.10.2-46.el6_6.2 (datatype=evr_string)
version is earlier than 0:0.10.2-46.el6_6.2 linux : rpminfo_state 
IF : libvirt-devel is earlier than 0:0.10.2-46.el6_6.2
Linux : RPM Test :  libvirt-devel is earlier than 0:0.10.2-46.el6_6.2 
At least one of the objects listed below must exist on the system (Existence check)
Linux : RPM Package 
libvirt-devel
RPM Version less than 0:0.10.2-46.el6_6.2 (datatype=evr_string)
version is earlier than 0:0.10.2-46.el6_6.2 linux : rpminfo_state 
IF : libvirt is earlier than 0:0.10.2-46.el6_6.2
Linux : RPM Test :  libvirt is earlier than 0:0.10.2-46.el6_6.2 
At least one of the objects listed below must exist on the system (Existence check)
RPM Version less than 0:0.10.2-46.el6_6.2 (datatype=evr_string)
version is earlier than 0:0.10.2-46.el6_6.2 linux : rpminfo_state 
IF : libvirt-client is earlier than 0:0.10.2-46.el6_6.2
Linux : RPM Test :  libvirt-client is earlier than 0:0.10.2-46.el6_6.2 
At least one of the objects listed below must exist on the system (Existence check)
Linux : RPM Package 
libvirt-client
RPM Version less than 0:0.10.2-46.el6_6.2 (datatype=evr_string)
version is earlier than 0:0.10.2-46.el6_6.2 linux : rpminfo_state 
IF : Any one of the following are true Operation system section
Prerequisites (Extended Definitions)
The operating system installed on the system is CentOS Linux 6.x oval:org.mitre.oval:def:16337
The operating system installed on the system is Red Hat Enterprise Linux 6 oval:org.mitre.oval:def:20273

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