Dropbox Lepton 1.2.1 allows DoS (SEGV and application crash) via a malformed lepton file because the code does not ensure setup of a correct number of threads.
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "1.2.1+20170405-3build1", "binary_name": "lepton" }, { "binary_version": "1.2.1+20170405-3build1", "binary_name": "lepton-dbgsym" } ] }