Ubuntu Security Update USN-4021-1: libvirt vulnerabilities

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libvirt vulnerabilities


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

  • Ubuntu 19.04
  • Ubuntu 18.10
Summary


Several security issues were fixed in libvirt.

Software Description

  • libvirt - Libvirt virtualization toolkit
Details


Daniel P. Berrangé discovered that libvirt incorrectly handled socket permissions. A local attacker could possibly use this issue to access libvirt. (CVE-2019-10132)

It was discovered that libvirt incorrectly performed certain permission checks. A remote attacker could possibly use this issue to access the guest agent and cause a denial of service. This issue only affected Ubuntu 19.04. (CVE-2019-3886)

Update instructions


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

Ubuntu 19.04
libvirt-clients - 5.0.0-1ubuntu2.3
libvirt-daemon - 5.0.0-1ubuntu2.3
libvirt0 - 5.0.0-1ubuntu2.3
Ubuntu 18.10
libvirt-clients - 4.6.0-2ubuntu3.7
libvirt-daemon - 4.6.0-2ubuntu3.7
libvirt0 - 4.6.0-2ubuntu3.7

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References


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