Multiple VMware products HGFS buffer overflow

vmware-hgfs-bo (42753) The risk level is classified as HighHigh Risk


Multiple VMware products are vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the implementation of the Host Guest File System (HGFS) shared folders feature. If the shared folders are enabled and at least one folder is shared, a remote attacker could overflow a buffer and execute arbitrary code on the system with the privileges of the vmx process.


Base Score: 5.1
  Access Vector: Network
  Access Complexity: High
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
Temporal Score: 3.8
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed


Gain Access


Refer to VMSA-2008-0008 for patch, upgrade or suggested workaround information. See References.


  • BugTraq Mailing List, Fri May 30 2008 - 14:08:23 CDT: VMSA-2008-0008 Updates to VMware Workstation, VMware Player, VMware ACE, VMware Fusion resolve critical security issues.
  • VMSA-2008-0008: Updates to VMware Workstation, VMware Player, VMware ACE, VMware Fusion resolve critical security issues.
  • VMware Web site: VMware: Virtualization, Virtual Machine & Virtual Server Consolidation.
  • BID-29444: VMware Host Guest File System Heap Buffer Overflow Vulnerability
  • CVE-2008-2098: Heap-based buffer overflow in the VMware Host Guest File System (HGFS) in VMware Workstation 6 before 6.0.4 build 93057, VMware Player 2 before 2.0.4 build 93057, VMware ACE 2 before 2.0.2 build 93057, and VMware Fusion before 1.1.2 build 87978, when folder sharing is used, allows guest OS users to execute arbitrary code on the host OS via unspecified vectors.
  • OSVDB ID: 45890: VMware Multiple Products Host Guest File System (HGFS) Shared Folders Feature Overflow
  • SA30476: VMware Products Multiple Vulnerabilities
  • SECTRACK ID: 1020148: VMware Workstation, Player, ACE, and Fusion Buffer Overflow in HGFS File System Lets Local Users Gain Elevated Privileges

Platforms Affected:

  • EMC VMware Player 2.0
  • EMC VMware Player 2.0.1
  • EMC VMware Player 2.0.2
  • EMC VMware Player 2.0.3
  • VMware ACE 2.0
  • VMware ACE 2.0.1
  • VMware ACE 2.0.3
  • VMware Fusion 1.1
  • VMware Fusion 1.1.1
  • VMware Workstation 6.0
  • VMware Workstation 6.0.1
  • VMware Workstation 6.0.2
  • VMware Workstation 6.0.3


May 30, 2008

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