VMware ESXi (7.0 before ESXi_7.0.0-1.20.16321839, 6.7 before ESXi670-202006401-SG and 6.5 before ESXi650-202005401-SG), Workstation (15.x before 15.5.2), and Fusion (11.x before 11.5.2) contain a use-after-free vulnerability in PVNVRAM. A malicious actor with local access to a virtual machine may be able to read privileged information contained in physical memory.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
| Link | Tags |
|---|---|
| https://www.vmware.com/security/advisories/VMSA-2020-0015.html | vendor advisory |
| http://seclists.org/fulldisclosure/2020/Jul/22 | mailing list third party advisory exploit |
| http://packetstormsecurity.com/files/158459/VMware-ESXi-Use-After-Free-Out-Of-Bounds-Access.html | third party advisory vdb entry exploit |