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Ubuntu 13.10: USN-2209-1 Critical Libvirt Symlink Handling Issues

ubuntu
Calendar Grey May 7, 2014
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Address vulnerabilities in libvirt by applying recent updates for Ubuntu 13.10 to bolster defenses against potential threats.
Several security issues were fixed in libvirt.

Summary

Several security issues were fixed in libvirt.

Software Description:

- libvirt: Libvirt virtualization toolkit

Details:

It was discovered that libvirt incorrectly handled symlinks when using the

LXC driver. An attacker could possibly use this issue to delete host

devices, create arbitrary nodes, and shutdown or power off the host.

(CVE-2013-6456)

Marian Krcmarik discovered that libvirt incorrectly handled seamless SPICE

migrations. An attacker could possibly use this issue to cause a denial of

service. (CVE-2013-7336)

Topics%20covered

Topics Covered

security advisory denial of service critical ubuntu libvirt symlink handling

Update Instructions

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

Ubuntu 13.10:
  libvirt-bin                     1.1.1-0ubuntu8.11
  libvirt0                        1.1.1-0ubuntu8.11

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

References

https://ubuntu.com/security/notices/USN-2209-1

CVE-2013-6456, CVE-2013-7336

Severity
critical
Lowest
Low
Medium
High
Critical

May 07, 2014

Topics%20covered

Topics Covered

security advisory denial of service critical ubuntu libvirt symlink handling

Package Information

https://launchpad.net/ubuntu/+source/libvirt/1.1.1-0ubuntu8.11

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