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TITLE:
VMware Workstation Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA25079

VERIFY ADVISORY:
http://secunia.com/advisories/25079/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass, DoS

WHERE:
Local system

SOFTWARE:
VMware Workstation 5.x
http://secunia.com/product/5080/

DESCRIPTION:
Some vulnerabilities have been reported in VMware Workstation, 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 unspecified error exists within the VMX when storing certain
malformed configuration data, which can be exploited to cause a DoS
of guest operating systems.

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

4) Unspecified 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.

SOLUTION:
Update to VMware Workstation 5.5.4, Build 44386.
http://www.vmware.com/download/ws/

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

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

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