VMware Workstation Multiple Vulnerabilities
Secunia Advisory: SA25079 Release Date: 2007-05-01
Critical: Moderately critical
Impact: Security Bypass; DoS
Where: Local system
Solution Status: Vendor Patch
Software: VMware Workstation 5.x
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.
Update to VMware Workstation 5.5.4, Build 44386.
Provided and/or discovered by:
1) Tavis Ormandy, Google
2) Sungard Ixsecurity
3) Ruben Santamarta, Reversemode
4) Ken Johnson
5) Greg MacManus, iDefense Labs
5) iDefense Labs: http://labs.idefense.com/intelligenc...lay.php?id=521