{"id":"UBUNTU-CVE-2016-7466","details":"Memory leak in the usb_xhci_exit function in hw/usb/hcd-xhci.c in QEMU (aka Quick Emulator), when the xhci uses msix, allows local guest OS administrators to cause a denial of service (memory consumption and possibly QEMU process crash) by repeatedly unplugging a USB device.","modified":"2026-02-04T04:13:26.832769Z","published":"2016-09-21T00:00:00Z","related":["USN-3125-1"],"upstream":["CVE-2016-7466"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-7466"},{"type":"REPORT","url":"https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg02773.html"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2016/09/19/8"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3125-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-7466"}],"affected":[{"package":{"name":"qemu","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/qemu@1:2.5+dfsg-5ubuntu10.6?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.5+dfsg-5ubuntu10.6"}]}],"versions":["1:2.3+dfsg-5ubuntu9","1:2.3+dfsg-5ubuntu10","1:2.4+dfsg-4ubuntu1","1:2.4+dfsg-4ubuntu2","1:2.4+dfsg-4ubuntu3","1:2.4+dfsg-5ubuntu3","1:2.5+dfsg-1ubuntu2","1:2.5+dfsg-1ubuntu3","1:2.5+dfsg-1ubuntu4","1:2.5+dfsg-1ubuntu5","1:2.5+dfsg-5ubuntu1","1:2.5+dfsg-5ubuntu2","1:2.5+dfsg-5ubuntu4","1:2.5+dfsg-5ubuntu6","1:2.5+dfsg-5ubuntu7","1:2.5+dfsg-5ubuntu10","1:2.5+dfsg-5ubuntu10.1","1:2.5+dfsg-5ubuntu10.2","1:2.5+dfsg-5ubuntu10.3","1:2.5+dfsg-5ubuntu10.4","1:2.5+dfsg-5ubuntu10.5"],"ecosystem_specific":{"binaries":[{"binary_name":"qemu","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-block-extra","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-guest-agent","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-kvm","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-system","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-system-aarch64","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-system-arm","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-system-common","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-system-mips","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-system-misc","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-system-ppc","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-system-s390x","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-system-sparc","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-system-x86","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-user","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-user-binfmt","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-user-static","binary_version":"1:2.5+dfsg-5ubuntu10.6"},{"binary_name":"qemu-utils","binary_version":"1:2.5+dfsg-5ubuntu10.6"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-7466.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}