1. Ubuntu Security Notices
  2. USN-2404-1

USN-2404-1: libvirt vulnerabilities

Publication date

11 November 2014

Overview

Several security issues were fixed in libvirt.

Releases

Packages

  • libvirt - Libvirt virtualization toolkit

Details

Pavel Hrdina discovered that libvirt incorrectly handled locking when
processing the virConnectListAllDomains command. An attacker could use this
issue to cause libvirtd to hang, resulting in a denial of service.
(CVE-2014-3657)

Eric Blake discovered that libvirt incorrectly handled permissions when
processing the qemuDomainFormatXML command. An attacker with read-only
privileges could possibly use this to gain access to certain information
from the domain xml file. (CVE-2014-7823)

Pavel Hrdina discovered that libvirt incorrectly handled locking when
processing the virConnectListAllDomains command. An attacker could use this
issue to cause libvirtd to hang, resulting in a denial of service.
(CVE-2014-3657)

Eric Blake discovered that libvirt incorrectly handled permissions when
processing the qemuDomainFormatXML command. An attacker with read-only
privileges could possibly use this to gain access to certain information
from the domain xml file. (CVE-2014-7823)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
14.10 utopic libvirt-bin –  1.2.8-0ubuntu11.1
libvirt0 –  1.2.8-0ubuntu11.1
14.04 trusty libvirt-bin –  1.2.2-0ubuntu13.1.7
libvirt0 –  1.2.2-0ubuntu13.1.7

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›