The new Linux kernel security update comes about three months after the previous kernel update and it’s here to address a total of four security vulnerabilities discovered by various security researchers in the upstream Linux 4.19 kernel series used by the Debian GNU/Linux 10 “Buster” operating system.
The four security flaws patched in this kernel update are CVE-2020-36311, a vulnerability discovered in the KVM subsystem for AMD CPUs that could allow an attacker to cause a denial of service (soft lockup) by triggering the destruction of a large Secure Encrypted Virtualization (SEV) virtual machine.