Heap-based buffer overflow in Broadcom products - CVE-2020-3971
Published: June 25, 2020
Vulnerability identifier: #VU29303
CSH Severity: Low
CVSS v4: 5.9 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-3971
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to gain access to sensitive information on the system.
The vulnerability exists due to a boundary error in the vmxnet3 virtual network adapter. A local attacker can pass specially crafted data to the applicatoin, trigger heap-based buffer overflow and read privileged information contained in hypervisor memory from a virtual machine.
Affected software
Cloud Foundation
VMware Fusion
VMware Workstation
VMware ESXi
VMware Fusion
VMware Workstation
VMware ESXi
How to mitigate CVE-2020-3971
Install updates from vendor's website.
Cloud Foundation - update to 3.7.2
VMware ESXi - addressed in versions ESXi650-201907101-SG, ESXi670-201904101-SG
VMware Fusion - update to 11.0.2
VMware Workstation - update to 15.0.2
VMware ESXi - addressed in versions ESXi650-201907101-SG, ESXi670-201904101-SG
VMware Fusion - update to 11.0.2
VMware Workstation - update to 15.0.2