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-2015-4680 low priority: Ubuntu including 1 source packages (freeradius), 9 status rows across 9 suites (precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): ignored 4, not-affected 3, DNE 1, needed 1.
FreeRADIUS 2.2.x before 2.2.8 and 3.0.x before 3.0.9 does not properly check revocation of intermediate CA certificates.