NLTK Downloader before 3.4.5 is vulnerable to a directory traversal, allowing attackers to write arbitrary files via a ../ (dot dot slash) in an NLTK package (ZIP archive) that is mishandled during extraction.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "2.0~b9-0ubuntu4.1~esm2", "binary_name": "python-nltk" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "3.1-1ubuntu0.1", "binary_name": "python-nltk" }, { "binary_version": "3.1-1ubuntu0.1", "binary_name": "python3-nltk" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "3.2.5-1ubuntu0.1", "binary_name": "python-nltk" }, { "binary_version": "3.2.5-1ubuntu0.1", "binary_name": "python3-nltk" } ] }