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-2011-2515 negligible priority: Ubuntu including 1 source packages (packagekit), 4 status rows across 4 suites (precise, trusty, upstream, vivid): not-affected 2, DNE 1, released 1.
PackageKit 0.6.17 allows installation of unsigned RPM packages as though they were signed which may allow installation of non-trusted packages and execution of arbitrary code.