{"id":"UBUNTU-CVE-2015-7972","details":"The (1) libxl_set_memory_target function in tools/libxl/libxl.c and (2) libxl__build_post function in tools/libxl/libxl_dom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand (PoD) system, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors related to \"heavy memory pressure.\"","modified":"2026-04-22T10:12:12.725146Z","published":"2015-10-30T15:59:00Z","upstream":["CVE-2015-7972"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-7972"},{"type":"REPORT","url":"http://xenbits.xen.org/xsa/advisory-153.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2015-7972"}],"affected":[{"package":{"name":"xen","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/xen@4.4.2-0ubuntu0.14.04.3?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.2-0ubuntu0.14.04.3"}]}],"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","4.4.2-0ubuntu0.14.04.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.4.2-0ubuntu0.14.04.3","binary_name":"libxen-4.4"},{"binary_version":"4.4.2-0ubuntu0.14.04.3","binary_name":"libxen-ocaml"},{"binary_version":"4.4.2-0ubuntu0.14.04.3","binary_name":"libxenstore3.0"},{"binary_version":"4.4.2-0ubuntu0.14.04.3","binary_name":"xen-hypervisor-4.1-amd64"},{"binary_version":"4.4.2-0ubuntu0.14.04.3","binary_name":"xen-hypervisor-4.3-amd64"},{"binary_version":"4.4.2-0ubuntu0.14.04.3","binary_name":"xen-hypervisor-4.3-armhf"},{"binary_version":"4.4.2-0ubuntu0.14.04.3","binary_name":"xen-hypervisor-4.4-amd64"},{"binary_version":"4.4.2-0ubuntu0.14.04.3","binary_name":"xen-hypervisor-4.4-arm64"},{"binary_version":"4.4.2-0ubuntu0.14.04.3","binary_name":"xen-hypervisor-4.4-armhf"},{"binary_version":"4.4.2-0ubuntu0.14.04.3","binary_name":"xen-system-amd64"},{"binary_version":"4.4.2-0ubuntu0.14.04.3","binary_name":"xen-system-arm64"},{"binary_version":"4.4.2-0ubuntu0.14.04.3","binary_name":"xen-system-armhf"},{"binary_version":"4.4.2-0ubuntu0.14.04.3","binary_name":"xen-utils-4.4"},{"binary_version":"4.4.2-0ubuntu0.14.04.3","binary_name":"xen-utils-common"},{"binary_version":"4.4.2-0ubuntu0.14.04.3","binary_name":"xenstore-utils"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-7972.json"}}],"schema_version":"1.7.5","severity":[{"type":"Ubuntu","score":"low"}]}