This update for xen fixes the following issues:
CVE-2021-28701: Fixed race condition in XENMAPSPACEgranttable handling (XSA-384) (bsc#1189632).
Upstream bug fixes (bsc#1027519)
{
    "binaries": [
        {
            "xen-tools": "4.14.2_06-3.12.1",
            "xen-tools-xendomains-wait-disk": "4.14.2_06-3.12.1",
            "xen-tools-domU": "4.14.2_06-3.12.1",
            "xen-libs-32bit": "4.14.2_06-3.12.1",
            "xen": "4.14.2_06-3.12.1",
            "xen-devel": "4.14.2_06-3.12.1",
            "xen-libs": "4.14.2_06-3.12.1",
            "xen-doc-html": "4.14.2_06-3.12.1"
        }
    ]
}