In Firejail before 0.9.60, seccomp filters are writable inside the jail, leading to a lack of intended seccomp restrictions for a process that is joined to the jail after a filter has been modified by an attacker.
{ "binaries": [ { "binary_name": "firejail", "binary_version": "0.9.38.10-0ubuntu0.16.04.1" } ] }
{ "binaries": [ { "binary_name": "firejail", "binary_version": "0.9.52-2" }, { "binary_name": "firejail-profiles", "binary_version": "0.9.52-2" } ] }