SUSE-SU-2020:0334-1 Security update for xen

This update for xen fixes the following issues: - CVE-2020-7211: potential directory traversal using relative paths via tftp server on Windows host bsc1161181. - CVE-2019-19579: Device quarantine for alternate pci assignment methods bsc1157888. - CVE-2019-19581: findnextbit issues bsc1158003. -...

Device quarantine for alternate pci assignment methods

ISSUE DESCRIPTION XSA-302 relies on the use of libxl's "assignable-add" feature to prepare devices to be assigned to untrusted guests. Unfortunately, this is not considered a strictly required step for device assignment. The PCI passthrough documentation on the wiki describes alternate ways of...