Ubuntu Security Notice 4015-2 - USN-4015-1 fixed a vulnerability in DBus. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Joe Vennix discovered that DBus incorrectly handled DBUS_COOKIE_SHA1 authentication. A local attacker could possibly use this issue to bypass authentication and connect to DBus servers with elevated privileges. Various other issues were also addressed.
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