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-2012-0049 medium priority: Ubuntu including 1 source packages (openttd), 17 status rows across 17 suites (hardy, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 9, ignored 6, DNE 1, released 1.
OpenTTD before 1.1.5 contains a Denial of Service (slow read attack) that prevents users from joining the server.