CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS
Percentile
95.0%
CentOS Errata and Security Advisory CESA-2013:0831
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.
It was found that libvirtd leaked file descriptors when listing all volumes
for a particular pool. A remote attacker able to establish a read-only
connection to libvirtd could use this flaw to cause libvirtd to consume all
available file descriptors, preventing other users from using libvirtd
services (such as starting a new guest) until libvirtd is restarted.
(CVE-2013-1962)
Red Hat would like to thank Edoardo Comar of IBM for reporting this issue.
This update also fixes the following bugs:
root [date] - failed cgroup allow path rw /dev/kqemu
With this update, libvirt no longer attempts the nonsensical cgroup
actions, leaving only valid attempts in the libvirtd and audit logs (making
it easier to search for real cases of failure). (BZ#958837)
All users of libvirt 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.
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2013-May/081894.html
Affected packages:
libvirt
libvirt-client
libvirt-devel
libvirt-lock-sanlock
libvirt-python
Upstream details at:
https://access.redhat.com/errata/RHSA-2013:0831
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
CentOS | 6 | i686 | libvirt | < 0.10.2-18.el6_4.5 | libvirt-0.10.2-18.el6_4.5.i686.rpm |
CentOS | 6 | i686 | libvirt-client | < 0.10.2-18.el6_4.5 | libvirt-client-0.10.2-18.el6_4.5.i686.rpm |
CentOS | 6 | i686 | libvirt-devel | < 0.10.2-18.el6_4.5 | libvirt-devel-0.10.2-18.el6_4.5.i686.rpm |
CentOS | 6 | i686 | libvirt-python | < 0.10.2-18.el6_4.5 | libvirt-python-0.10.2-18.el6_4.5.i686.rpm |
CentOS | 6 | x86_64 | libvirt | < 0.10.2-18.el6_4.5 | libvirt-0.10.2-18.el6_4.5.x86_64.rpm |
CentOS | 6 | i686 | libvirt-client | < 0.10.2-18.el6_4.5 | libvirt-client-0.10.2-18.el6_4.5.i686.rpm |
CentOS | 6 | x86_64 | libvirt-client | < 0.10.2-18.el6_4.5 | libvirt-client-0.10.2-18.el6_4.5.x86_64.rpm |
CentOS | 6 | i686 | libvirt-devel | < 0.10.2-18.el6_4.5 | libvirt-devel-0.10.2-18.el6_4.5.i686.rpm |
CentOS | 6 | x86_64 | libvirt-devel | < 0.10.2-18.el6_4.5 | libvirt-devel-0.10.2-18.el6_4.5.x86_64.rpm |
CentOS | 6 | x86_64 | libvirt-lock-sanlock | < 0.10.2-18.el6_4.5 | libvirt-lock-sanlock-0.10.2-18.el6_4.5.x86_64.rpm |