cacti -- multiple vulnerabilities

The cacti developers reports:

    When viewing graphs, some input variables are not properly checked
    (SQL injection possible).
  

    Multiple instances of lib/functions.php are affected by unsafe
    deserialization of user-controlled data to populate arrays. An
    authenticated attacker could use this to influence object data
    values and control actions taken by Cacti or potentially cause
    memory corruption in the PHP module.