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Ubuntu: 4021-1 Moderate: libvirt Permission Access and DoS

ubuntu
Calendar Grey June 19, 2019
Dist Ubuntu Esm H88
Multiple vulnerabilities resolved in libvirt for Debian, tackling permission and denial-of-service risks. Upgrade immediately!
Several security issues were fixed in libvirt.

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)

Topics%20covered

Topics Covered

security advisory DoS Ubuntu libvirt permission access

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

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

References

https://ubuntu.com/security/notices/USN-4021-1

CVE-2019-10132, CVE-2019-3886

Severity
important
Lowest
Low
Medium
High
Critical

June 19, 2019

Topics%20covered

Topics Covered

security advisory DoS Ubuntu libvirt permission access

Package Information

https://launchpad.net/ubuntu/+source/libvirt/5.0.0-1ubuntu2.3
https://launchpad.net/ubuntu/+source/libvirt/4.6.0-2ubuntu3.7

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