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Insecure Library Loading
Moderately critical

VMware Products Multiple Vulnerabilities

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Release Date:  2007-05-01    Last Update:  2007-05-21    Views:  17,409

Secunia Advisory SA25079

Where:

Local system

Impact:

Security Bypass, DoS

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Some vulnerabilities have been reported in various VMware products, which can be exploited by malicious users to cause a DoS (Denial of Service) or bypass certain security restrictions.

1) An error exists within the ACPI implementation of the virtual machine process (VMX) when collecting information about running states of virtual machines, which can be exploited to cause the process to read from invalid memory locations.

2) An error within the saving of configuration data in VMDB files can be exploited to store malformed configuration data and cause a DoS on guest operating systems.

3) An error within the handling of general protection faults (GPFs) in Windows guest operating systems can be exploited to crash Windows virtual machines.

4) Errors when debugging applications in a 64-bit Windows guest operating system on a 64-bit host system can be exploited to e.g. cause corrupted stack pointers or kernel bugchecks.

5) A design error within the "Shared Folders" feature can be exploited in a guest system to read and write arbitrary files on a host system.

Successful exploitation requires that at least one folder is shared. In order to write to host files, the "read only" option of the shared folder has to be disabled. ESX server is reportedly not affected as it does not use the "Shared Folders" feature.


Solution:
Update to the latest versions or apply patches.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) Tavis Ormandy, Google
2) Sungard Ixsecurity
3) Ruben Santamarta, Reversemode
4) Ken Johnson
5) Greg MacManus, iDefense Labs

Original Advisory:
VMware:
http://www.vmware.com/support/ws55/doc/releasenotes_ws55.html#554
http://www.vmware.com/support/server/doc/releasenotes_server.html#resolved
http://www.vmware.com/support/player/doc/releasenotes_player.html#104
http://lists.grok.org.uk/pipermail/full-disclosure/2007-May/054161.html
http://lists.grok.org.uk/pipermail/full-disclosure/2007-May/063436.html

3) Reversemode:
http://www.reversemode.com/index.php?option=com_remository&Itemid=2&func=fileinfo&id=49

5) iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=521

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: VMware Products Multiple Vulnerabilities

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