{"id":"UBUNTU-CVE-2017-10916","details":"The vCPU context-switch implementation in Xen through 4.8.x improperly interacts with the Memory Protection Extensions (MPX) and Protection Key (PKU) features, which makes it easier for guest OS users to defeat ASLR and other protection mechanisms, aka XSA-220.","modified":"2026-04-22T11:55:46.139942Z","published":"2017-07-05T01:29:00Z","upstream":["CVE-2017-10916"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-10916"},{"type":"REPORT","url":"https://xenbits.xen.org/xsa/advisory-220.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-10916"}],"affected":[{"package":{"name":"xen","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/xen@4.6.5-0ubuntu1.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.6.5-0ubuntu1.2"}]}],"versions":["4.5.1-0ubuntu1","4.5.1-0ubuntu2","4.6.0-1ubuntu1","4.6.0-1ubuntu2","4.6.0-1ubuntu4","4.6.0-1ubuntu4.1","4.6.0-1ubuntu4.2","4.6.0-1ubuntu4.3","4.6.5-0ubuntu1","4.6.5-0ubuntu1.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libxen-4.6","binary_version":"4.6.5-0ubuntu1.2"},{"binary_version":"4.6.5-0ubuntu1.2","binary_name":"libxenstore3.0"},{"binary_name":"xen-hypervisor-4.4-amd64","binary_version":"4.6.5-0ubuntu1.2"},{"binary_name":"xen-hypervisor-4.4-arm64","binary_version":"4.6.5-0ubuntu1.2"},{"binary_name":"xen-hypervisor-4.4-armhf","binary_version":"4.6.5-0ubuntu1.2"},{"binary_name":"xen-hypervisor-4.5-amd64","binary_version":"4.6.5-0ubuntu1.2"},{"binary_name":"xen-hypervisor-4.5-arm64","binary_version":"4.6.5-0ubuntu1.2"},{"binary_name":"xen-hypervisor-4.5-armhf","binary_version":"4.6.5-0ubuntu1.2"},{"binary_name":"xen-hypervisor-4.6-amd64","binary_version":"4.6.5-0ubuntu1.2"},{"binary_name":"xen-hypervisor-4.6-arm64","binary_version":"4.6.5-0ubuntu1.2"},{"binary_version":"4.6.5-0ubuntu1.2","binary_name":"xen-hypervisor-4.6-armhf"},{"binary_version":"4.6.5-0ubuntu1.2","binary_name":"xen-system-amd64"},{"binary_name":"xen-system-arm64","binary_version":"4.6.5-0ubuntu1.2"},{"binary_name":"xen-system-armhf","binary_version":"4.6.5-0ubuntu1.2"},{"binary_name":"xen-utils-4.6","binary_version":"4.6.5-0ubuntu1.2"},{"binary_name":"xen-utils-common","binary_version":"4.6.5-0ubuntu1.2"},{"binary_name":"xenstore-utils","binary_version":"4.6.5-0ubuntu1.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-10916.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}