dbus_backend/lsd.py in the D-Bus backend in language-selector before 0.6.7 does not validate the arguments to the (1) SetSystemDefaultLangEnv and (2) SetSystemDefaultLanguageEnv functions, which allows local users to gain privileges via shell metacharacters in a string argument, a different vulnerability than CVE-2011-0729.
secunia.com/advisories/44214
www.securityfocus.com/bid/47502
www.ubuntu.com/usn/USN-1115-1/
www.ubuntuupdates.org/packages/show/307975
www.vupen.com/english/advisories/2011/1032
exchange.xforce.ibmcloud.com/vulnerabilities/67255
launchpad.net/bugs/764397
launchpad.net/ubuntu/+source/language-selector/0.6.7