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Sigurnosni nedostatak programske biblioteke libvirt

==========================================================================
Ubuntu Security Notice USN-3909-1
March 14, 2019

libvirt vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 18.10
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS

Summary:

libvirt could be made to crash under certain conditions.

Software Description:
– libvirt: Libvirt virtualization toolkit

Details:

It was discovered that libvirt incorrectly handled waiting for certain
agent events. An attacker inside a guest could possibly use this issue to
cause libvirtd to stop responding, resulting in a denial of service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.10:
libvirt-clients 4.6.0-2ubuntu3.4
libvirt-daemon 4.6.0-2ubuntu3.4
libvirt0 4.6.0-2ubuntu3.4

Ubuntu 18.04 LTS:
libvirt-clients 4.0.0-1ubuntu8.8
libvirt-daemon 4.0.0-1ubuntu8.8
libvirt0 4.0.0-1ubuntu8.8

Ubuntu 16.04 LTS:
libvirt-bin 1.3.1-1ubuntu10.25
libvirt0 1.3.1-1ubuntu10.25

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
https://usn.ubuntu.com/usn/usn-3909-1
CVE-2019-3840

Package Information:
https://launchpad.net/ubuntu/+source/libvirt/4.6.0-2ubuntu3.4
https://launchpad.net/ubuntu/+source/libvirt/4.0.0-1ubuntu8.8
https://launchpad.net/ubuntu/+source/libvirt/1.3.1-1ubuntu10.25

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