Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://github.com/nltk/nltk/blob/3.4.5/ChangeLog ↗
- https://github.com/nltk/nltk/commit/f59d7ed8df2e0e957f7f247fe218032abdbe9a10 ↗
- https://salvatoresecurity.com/zip-slip-in-nltk-cve-2019-14751/ ↗
- https://github.com/mssalvatore/CVE-2019-14751_PoC ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZGZSSEJH7RHH3RBUEVWWYT75QU67J7SE/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QI4IJGLZQ5S7C5LNRNROHAO2P526XE3D/ ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00054.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00001.html ↗