CVE-2021-20181

A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability.

Date published : 2021-05-13

https://security.netapp.com/advisory/ntap-20210720-0009/

https://www.zerodayinitiative.com/advisories/ZDI-21-159/