PYSEC-2019-36

    Dashboard / Vulnerabilities / PYSEC-2019-36

    PYSEC-2019-36

    Published: 22 Aug 2019Last Modified: 14 Mar 2023

    Summary:

    Details: 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.

    References: https://github.com/nltk/nltk/commit/f59d7ed8df2e0e957f7f247fe218032abdbe9a10, https://salvatoresecurity.com/zip-slip-in-nltk-cve-2019-14751/, https://github.com/nltk/nltk/blob/3.4.5/ChangeLog, https://github.com/mssalvatore/CVE-2019-14751_PoC, https://lists.fedoraproject.org/archives/list/[email protected]/message/ZGZSSEJH7RHH3RBUEVWWYT75QU67J7SE/, https://lists.fedoraproject.org/archives/list/[email protected]/message/QI4IJGLZQ5S7C5LNRNROHAO2P526XE3D/, http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00054.html, http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00001.html

    Affected packages

    Package

    Name: nltk

    Purl: pkg:pypi/nltk

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -f59d7ed8df2e0e957f7f247fe218032abdbe9a10

    Affected versions

    2.0.1rc2-git
    2.0.1rc1
    2.0.1rc3
    2.0.1rc4
    2.0.1
    2.0.2
    2.0.3
    2.0.4
    2.0.5

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    PYSEC-2019-36 | CVE-DB