{"id":"UBUNTU-CVE-2015-4163","details":"GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table operation version, which allows local guest domains to cause a denial of service (NULL pointer dereference) via a hypercall without a GNTTABOP_setup_table or GNTTABOP_set_version.","modified":"2026-04-22T10:20:50.737888Z","published":"2015-06-15T15:59:00Z","upstream":["CVE-2015-4163"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-4163"},{"type":"REPORT","url":"http://xenbits.xen.org/xsa/advisory-134.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2015-4163"}],"affected":[{"package":{"name":"xen","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/xen@4.4.2-0ubuntu0.14.04.2?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.2-0ubuntu0.14.04.2"}]}],"versions":["4.3.0-1ubuntu1","4.3.0-1ubuntu2","4.3.0-1ubuntu3","4.3.0-1ubuntu4","4.3.0-1ubuntu5","4.4.0-0ubuntu3","4.4.0-0ubuntu4","4.4.0-0ubuntu5","4.4.0-0ubuntu5.1","4.4.0-0ubuntu5.2","4.4.1-0ubuntu0.14.04.1","4.4.1-0ubuntu0.14.04.2","4.4.1-0ubuntu0.14.04.3","4.4.1-0ubuntu0.14.04.4","4.4.1-0ubuntu0.14.04.5","4.4.1-0ubuntu0.14.04.6","4.4.2-0ubuntu0.14.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.4.2-0ubuntu0.14.04.2","binary_name":"libxen-4.4"},{"binary_version":"4.4.2-0ubuntu0.14.04.2","binary_name":"libxen-ocaml"},{"binary_version":"4.4.2-0ubuntu0.14.04.2","binary_name":"libxenstore3.0"},{"binary_version":"4.4.2-0ubuntu0.14.04.2","binary_name":"xen-hypervisor-4.1-amd64"},{"binary_version":"4.4.2-0ubuntu0.14.04.2","binary_name":"xen-hypervisor-4.3-amd64"},{"binary_version":"4.4.2-0ubuntu0.14.04.2","binary_name":"xen-hypervisor-4.3-armhf"},{"binary_version":"4.4.2-0ubuntu0.14.04.2","binary_name":"xen-hypervisor-4.4-amd64"},{"binary_version":"4.4.2-0ubuntu0.14.04.2","binary_name":"xen-hypervisor-4.4-arm64"},{"binary_version":"4.4.2-0ubuntu0.14.04.2","binary_name":"xen-hypervisor-4.4-armhf"},{"binary_version":"4.4.2-0ubuntu0.14.04.2","binary_name":"xen-system-amd64"},{"binary_version":"4.4.2-0ubuntu0.14.04.2","binary_name":"xen-system-arm64"},{"binary_version":"4.4.2-0ubuntu0.14.04.2","binary_name":"xen-system-armhf"},{"binary_version":"4.4.2-0ubuntu0.14.04.2","binary_name":"xen-utils-4.4"},{"binary_version":"4.4.2-0ubuntu0.14.04.2","binary_name":"xen-utils-common"},{"binary_version":"4.4.2-0ubuntu0.14.04.2","binary_name":"xenstore-utils"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-4163.json"}}],"schema_version":"1.7.5","severity":[{"type":"Ubuntu","score":"medium"}]}