Ubuntu Security Notice USN-4047-1

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Ubuntu Security Notice USN-4047-1
July 08, 2019

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

- Ubuntu 19.04
- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in libvirt.

Software Description:
- libvirt: Libvirt virtualization toolkit

Details:

Matthias Gerstner and Ján Tomko discovered that libvirt incorrectly handled
certain API calls. An attacker could possibly use this issue to check for
arbitrary files, or execute arbitrary binaries. In the default
installation, attackers would be isolated by the libvirt AppArmor profile.

Update instructions:

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

Ubuntu 19.04:
libvirt-clients 5.0.0-1ubuntu2.4
libvirt-daemon 5.0.0-1ubuntu2.4
libvirt0 5.0.0-1ubuntu2.4

Ubuntu 18.10:
libvirt-clients 4.6.0-2ubuntu3.8
libvirt-daemon 4.6.0-2ubuntu3.8
libvirt0 4.6.0-2ubuntu3.8

Ubuntu 18.04 LTS:
libvirt-clients 4.0.0-1ubuntu8.12
libvirt-daemon 4.0.0-1ubuntu8.12
libvirt0 4.0.0-1ubuntu8.12

Ubuntu 16.04 LTS:
libvirt-bin 1.3.1-1ubuntu10.27
libvirt0 1.3.1-1ubuntu10.27

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

References:
https://usn.ubuntu.com/4047-1
CVE-2019-10161, CVE-2019-10166, CVE-2019-10167, CVE-2019-10168

Package Information:
https://launchpad.net/ubuntu/+source/libvirt/5.0.0-1ubuntu2.4
https://launchpad.net/ubuntu/+source/libvirt/4.6.0-2ubuntu3.8
https://launchpad.net/ubuntu/+source/libvirt/4.0.0-1ubuntu8.12
https://launchpad.net/ubuntu/+source/libvirt/1.3.1-1ubuntu10.27
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