A vulnerability in the VMNAT service of VMware Workstation and Fusion could allow a local attacker on a guest operating system to execute arbitrary code on the host operating system.
The vulnerability is due to an unspecified condition related to the VMNAT service on an affected system. An attacker could exploit this vulnerability to trigger a heap-based buffer overflow condition, which the attacker could use to execute arbitrary code on the host operating system. A successful exploit could be use to conduct further attacks.
VMware has confirmed the vulnerability and released software updates.
To exploit this vulnerability, an attacker must have local access to a guest operating system. This access requirement may reduce the likelihood of a successful exploit.
Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to access local systems.
Administrators are advised to monitor affected systems.
VMware has released a security advisory at the following link: VMSA-2017-0018
VMware has released software updates at the following links:
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM
THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.
A standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products
Cisco Multivendor Vulnerability Alerts respond to vulnerabilities identified in third-party vendors' products. These alerts contain information compiled from diverse sources and provide comprehensive technical descriptions, objective analytical assessments, workarounds and practical safeguards, and links to vendor advisories and patches.