tags 678512 + security thanks I'm not certain, but I have an inkling this is caused by the bug fixed in https://github.com/eventmachine/eventmachine/pull/502 which introduced a memory leak which was fixed in https://github.com/eventmachine/eventmachine/pull/586
We are seeing identical overflows in beef when configured to use IPv6 on Kali. See https://github.com/beefproject/beef/issues/1187 Regardless, it looks to me as though Jessie and Wheezy's ruby-eventmachine packages (1.0.3-6+b2 and 0.12.10-3 respectively) are missing patches for what is said upsteam to be a remotely exploitable security issue - see https://github.com/eventmachine/eventmachine/issues/501#issuecomment-37307556 -- Justin
