Bug 1771375 (CVE-2019-14751) - CVE-2019-14751 python-nltk: directory traversal vulnerability allows attackers to write arbitrary files via ../
Summary: CVE-2019-14751 python-nltk: directory traversal vulnerability allows attacker...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2019-14751
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1771376 1771377
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-11-12 09:22 UTC by Dhananjay Arunesh
Modified: 2019-11-12 12:51 UTC (History)
1 user (show)

Fixed In Version: NLTK 3.4.5
Clone Of:
Environment:
Last Closed: 2019-11-12 12:51:14 UTC
Embargoed:

Attachments (Terms of Use)

Description Dhananjay Arunesh 2019-11-12 09:22:15 UTC 
A vulnerability was found in 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.


Reference:
https://github.com/mssalvatore/CVE-2019-14751_PoC
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/
Comment 1 Dhananjay Arunesh 2019-11-12 09:22:37 UTC 
Created python-nltk tracking bugs for this issue:

Affects: epel-6 [bug 1771377]
Affects: fedora-all [bug 1771376]
Comment 2 Product Security DevOps Team 2019-11-12 12:51:14 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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