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Database

Lack of data validation - Path Traversal In nltk

Description

NLTK Vulnerable To Path Traversal 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.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem
Package
Affected version
Patched versions

Aliases

1. CVE-2019-147512. NVD-2019-147513. OSV-2019-147514. OSV-DEBIAN-2019-147515. GHSA-mr7p-25v2-35wr6. GCVE-2019-147517. SECURITY-TRACKER-CVE-2019-14751

References

1. https://github.com/nltk/nltk/commit/f59d7ed8df2e0e957f7f247fe218032abdbe9a102. https://github.com/mssalvatore/CVE-2019-14751_PoC3. https://github.com/nltk/nltk/blob/3.4.5/ChangeLog4. https://github.com/pypa/advisory-database/tree/main/vulns/nltk/PYSEC-2019-106.yaml5. https://lists.fedoraproject.org/archives/list/[email protected]/message/QI4IJGLZQ5S7C5LNRNROHAO2P526XE3D6. https://lists.fedoraproject.org/archives/list/[email protected]/message/ZGZSSEJH7RHH3RBUEVWWYT75QU67J7SE7. https://salvatoresecurity.com/zip-slip-in-nltk-cve-2019-147518. http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00054.html9. http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00001.html

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