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VMware Patches Critical Vulnerabilities

VMware has patched (https://nakedsecurity.sophos.com/2019/04/02/vmware-patches-pwn2own-flaws/) five critical vulnerabilities in its products. The affected products/families include vSphere ESX-i, VMware Workstation Pro/Player, and VMware Fusion Pro/Fusion.

A team of hackers called Fluoroacetate demonstrated exploitation of two flaws at the CanSecWest cybersecurity conference, which took place in Canada.

These two flaws exploited out-of-bounds read/write vulnerability and a time-of-check/time-of-use (TOCTOU) vulnerability in the virtual universal host controller interface used by ESXi, Workstation, and Fusion.

"An attacker must have access to a virtual machine with a virtual USB controller present, the advisory said, adding that it could allow a guest VM to execute code on the host system," said VMware in a security advisory. The good news is that an attacker needs access to a virtual machine with a virtual USB controller present to execute code on the host system.

Two other issues allow code execution on the host from a guest. The fifth vulnerability, which affects the Fusion product, allows an unauthenticated application programming interface (API) access to an application menu through a web socket.

If you use any of these VMware products, please update them now.

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