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-2011-1028 medium priority: Ubuntu including 3 source packages (gallery2, moodle, smarty), 51 status rows across 17 suites (hardy, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 22, DNE 17, ignored 9, needs-triage 2, released 1.
The $smarty.template variable in Smarty3 allows attackers to possibly execute arbitrary PHP code via the sysplugins/smarty_internal_compile_private_special_variable.php file.