Linux Distros Unpatched Vulnerability : CVE-2021-47008

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Make sure GHCB is mapped before updating Access to the GHCB is mainly in the VMGEX...

CVE-2021-47008

CVE-2021-47008 relates to the Linux kernel KVM/SVM path where GHCB is updated in SIPI handling and MSR operations. The vulnerability arises if SIPIs occur without a corresponding AP Reset Hold, risking a NULL pointer dereference when GHCB is not mapped, and similarly a potential GHCB access issue...