This update for xen fixes the following issues:
CVE-2021-28706: Fixed guests may exceed their designated memory limit (XSA-385) (bsc#1192554).
Upstream bug fixes (bsc#1027519)
{ "binaries": [ { "xen-libs": "4.12.4_16-3.57.1", "xen-devel": "4.12.4_16-3.57.1", "xen-tools": "4.12.4_16-3.57.1", "xen-tools-domU": "4.12.4_16-3.57.1", "xen": "4.12.4_16-3.57.1" } ] }