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Insecure Library Loading
Not critical

libvirt LXC Devices Hotplug Handling Security Issues

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Release Date:  2014-02-21    Views:  451

Secunia Advisory SA56187

Where:

Local system

Impact:

Manipulation of data

Solution Status:

Vendor Workaround

Software:

CVE Reference(s):

Description


Some security issues have been reported in libvirt, which can be exploited by malicious, local users in a guest virtual machine to manipulate certain data.

The security issues are caused due to the application performing operations on "/dev" without performing proper validity checks on the destination path. This can be exploited to e.g. manipulate certain files on the host file system via symlink attacks.

Successful exploitation requires the use of LXC containers for a guest system.

The security issues are reported in versions 1.1.4 and 1.2.0. Other versions may also be affected.


Solution:
Fixed in the source code repository.

Provided and/or discovered by:
Eric Blake within a Red Hat bug ticket.

Original Advisory:
https://bugzilla.redhat.com/show_bug.cgi?id=1045643

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: libvirt LXC Devices Hotplug Handling Security Issues

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