Citrix has issued a security update for Citrix Hypervisor vulnerabilities, that may each allow privileged code in a guest VM to cause the host to crash or become unresponsive.
The Citrix Hypervisor security update addresses the following Citrix Hypervisor vulnerabilities:
- CVE-2021-28704
- CVE-2021-28705
- CVE-2021-28714
- CVE-2021-28715
Citrix has released hotfixes to address each of these issues for Citrix Hypervisor, Citrix Hypervisor 8.x for CSS, and XenServer 7.1 LTSR Cumulative Update 2.