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-2014-3203 medium priority: Ubuntu including 1 source packages (unity), 6 status rows across 6 suites (lucid, precise, quantal, saucy, trusty, upstream): not-affected 3, DNE 1, needs-triage 1, released 1.
Unity before 7.2.1, as used in Ubuntu 14.04, does not properly restrict access to the Dash when the lock screen is active, which allows physically proximate attackers to bypass the lock screen and execute arbitrary commands, as demonstrated by pressing the SUPER key before the screen auto-locks.