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-2011-2777 medium priority: Ubuntu including 1 source packages (acpid), 6 status rows across 6 suites (hardy, lucid, maverick, natty, oneiric, upstream): released 4, ignored 1, needed 1.
samples/powerbtn/powerbtn.sh in acpid (aka acpid2) 2.0.16 and earlier uses the pidof program incorrectly, which allows local users to gain privileges by running a program with the name kded4 and a DBUS_SESSION_BUS_ADDRESS environment variable containing commands.