NetHack before version 3.6.0 allowed malicious use of escaping of characters in the configuration file (usually .nethackrc) which could be exploited. This bug is patched in NetHack 3.6.0.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "3.6.0-4", "binary_name": "nethack-common" }, { "binary_version": "3.6.0-4", "binary_name": "nethack-common-dbgsym" }, { "binary_version": "3.6.0-4", "binary_name": "nethack-console" }, { "binary_version": "3.6.0-4", "binary_name": "nethack-console-dbgsym" }, { "binary_version": "3.6.0-4", "binary_name": "nethack-lisp" }, { "binary_version": "3.6.0-4", "binary_name": "nethack-lisp-dbgsym" }, { "binary_version": "3.6.0-4", "binary_name": "nethack-x11" }, { "binary_version": "3.6.0-4", "binary_name": "nethack-x11-dbgsym" } ] }