The hash functionality in json-c before 0.12 allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted JSON data, involving collisions.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "0.11-3ubuntu1.2", "binary_name": "libjson-c-dev" }, { "binary_version": "0.11-3ubuntu1.2", "binary_name": "libjson-c-doc" }, { "binary_version": "0.11-3ubuntu1.2", "binary_name": "libjson-c2" }, { "binary_version": "0.11-3ubuntu1.2", "binary_name": "libjson-c2-dbg" }, { "binary_version": "0.11-3ubuntu1.2", "binary_name": "libjson0" }, { "binary_version": "0.11-3ubuntu1.2", "binary_name": "libjson0-dev" } ] }