{"id":"UBUNTU-CVE-2016-7796","details":"The manager_dispatch_notify_fd function in systemd allows local users to cause a denial of service (system hang) via a zero-length message received over a notify socket, which causes an error to be returned and the notification handler to be disabled.","modified":"2026-04-22T10:59:40.767510Z","published":"2016-10-13T14:59:00Z","upstream":["CVE-2016-7796"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-7796"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2016/09/30"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-7796"}],"affected":[{"package":{"name":"systemd","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/systemd@229-4ubuntu11?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"229-4ubuntu11"}]}],"versions":["225-1ubuntu9","227-2ubuntu1","227-2ubuntu2","228-1ubuntu2","228-2ubuntu1","228-2ubuntu2","228-3ubuntu1","228-4ubuntu1","228-4ubuntu2","228-5ubuntu1","228-5ubuntu2","228-5ubuntu3","228-6ubuntu1","229-1ubuntu2","229-1ubuntu4","229-2ubuntu1","229-3ubuntu1","229-3ubuntu2","229-4ubuntu1","229-4ubuntu4","229-4ubuntu5","229-4ubuntu6","229-4ubuntu7","229-4ubuntu8","229-4ubuntu10"],"ecosystem_specific":{"binaries":[{"binary_name":"libnss-myhostname","binary_version":"229-4ubuntu11"},{"binary_name":"libnss-mymachines","binary_version":"229-4ubuntu11"},{"binary_name":"libnss-resolve","binary_version":"229-4ubuntu11"},{"binary_name":"libpam-systemd","binary_version":"229-4ubuntu11"},{"binary_name":"libsystemd0","binary_version":"229-4ubuntu11"},{"binary_name":"libudev1","binary_version":"229-4ubuntu11"},{"binary_name":"systemd","binary_version":"229-4ubuntu11"},{"binary_name":"systemd-container","binary_version":"229-4ubuntu11"},{"binary_name":"systemd-coredump","binary_version":"229-4ubuntu11"},{"binary_name":"systemd-journal-remote","binary_version":"229-4ubuntu11"},{"binary_name":"systemd-sysv","binary_version":"229-4ubuntu11"},{"binary_name":"udev","binary_version":"229-4ubuntu11"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-7796.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}