Maintainers for xen-utils-common are Debian Xen Team <pkg-xen-devel@lists.alioth.debian.org>.
You may want to refer to the following packages that are part of the same source: libxen-dev, libxencall1, libxencall1t64, libxendevicemodel1, libxendevicemodel1t64, libxenevtchn1, libxenevtchn1t64, libxenforeignmemory1, libxenforeignmemory1t64, libxengnttab1, libxengnttab1t64, libxenhypfs1, libxenhypfs1t64, libxenmisc4.11, libxenmisc4.14, libxenmisc4.17, libxenmisc4.17t64, libxenstore3.0, libxenstore4, libxenstore4t64, libxentoolcore1, libxentoolcore1t64, libxentoollog1, libxentoollog1t64, xen-doc, xen-hypervisor-4.11-amd64, xen-hypervisor-4.11-arm64, xen-hypervisor-4.11-armhf, xen-hypervisor-4.14-amd64, xen-hypervisor-4.14-arm64, xen-hypervisor-4.14-armhf, xen-hypervisor-4.17-amd64, xen-hypervisor-4.17-amd64-dbg, xen-hypervisor-4.17-arm64, xen-hypervisor-4.17-arm64-dbg, xen-hypervisor-4.17-armhf, xen-hypervisor-4.17-armhf-dbg, xen-hypervisor-common, xen-system-amd64, xen-system-arm64, xen-system-armhf, xen-utils-4.11, xen-utils-4.14, xen-utils-4.17, xen-utils-4.17-dbg, xenstore-utils.
You might like to refer to the xen-utils-common package page, to the Package Tracking System, or to the source package src:xen's bug page.
If you find a bug not listed here, please report it.