This update for xen fixes the following issues: - CVE-2020-7211: potential directory traversal using relative paths via tftp server on Windows host . - CVE-2019-19579: Device quarantine for alternate pci assignment methods . - CVE-2019-19581: find_next_bit issues . - CVE-2019-19583: VMentry failure with debug exceptions and blocked states . - CVE-2019-19578: Linear pagetable use / entry miscounts . - CVE-2019-19580: Further issues with restartable PV type change operations . - CVE-2019-19577: dynamic height for the IOMMU pagetables . - CVE-2019-18420: VCPUOP_initialise DoS . - CVE-2019-18425: missing descriptor table limit checking in x86 PV emulation . - CVE-2019-18421: Issues with restartable PV type change operations . - CVE-2019-18424: passed through PCI devices may corrupt host memory after deassignment . - CVE-2018-12207: Machine Check Error Avoidance on Page Size Change . - CVE-2019-11135: TSX Asynchronous Abort issue .