The put command functionality in beanstalkd 1.4.5 and earlier allows remote attackers to execute arbitrary Beanstalk commands via the body in a job that is too big, which is not properly handled by the dispatch_cmd function in prot.c.
https://exchange.xforce.ibmcloud.com/vulnerabilities/59107
http://www.securityfocus.com/bid/40516
http://secunia.com/advisories/40032
http://kr.github.com/beanstalkd/2010/05/23/1.4.6-release-notes.html
http://github.com/kr/beanstalkd/commit/2e8e8c6387ecdf5923dfc4d7718d18eba1b0873d