View at Official ubuntu advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2016-7796 medium priority: Ubuntu including 1 source packages (systemd), 6 status rows across 6 suites (precise, trusty, upstream, xenial, yakkety, zesty): not-affected 3, DNE 1, needs-triage 1, released 1.
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.