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    ArchLinux: 202009-4: python-django: multiple issues

    Date 09 Sep 2020
    255
    Posted By LinuxSecurity Advisories
    The package python-django before version 3.1.1-1 is vulnerable to multiple issues including access restriction bypass and insufficient validation.
    Arch Linux Security Advisory ASA-202009-4
    =========================================
    
    Severity: Medium
    Date    : 2020-09-03
    CVE-ID  : CVE-2020-24583 CVE-2020-24584
    Package : python-django
    Type    : multiple issues
    Remote  : Yes
    Link    : https://security.archlinux.org/AVG-1217
    
    Summary
    =======
    
    The package python-django before version 3.1.1-1 is vulnerable to
    multiple issues including access restriction bypass and insufficient
    validation.
    
    Resolution
    ==========
    
    Upgrade to 3.1.1-1.
    
    # pacman -Syu "python-django>=3.1.1-1"
    
    The problems have been fixed upstream in version 3.1.1.
    
    Workaround
    ==========
    
    None.
    
    Description
    ===========
    
    - CVE-2020-24583 (access restriction bypass)
    
    An issue was discovered in Django 2.2 before 2.2.16, 3.0 before 3.0.10,
    and 3.1 before 3.1.1 (when Python 3.7+ is used).
    FILE_UPLOAD_DIRECTORY_PERMISSIONS mode was not applied to intermediate-
    level directories created in the process of uploading files. It was
    also not applied to intermediate-level collected static directories
    when using the collectstatic management command.
    
    - CVE-2020-24584 (insufficient validation)
    
    An issue was discovered in Django 2.2 before 2.2.16, 3.0 before 3.0.10,
    and 3.1 before 3.1.1 (when Python 3.7+ is used). The intermediate-level
    directories of the filesystem cache had the system's standard umask
    rather than 0o077.
    
    Impact
    ======
    
    A remote attacker is able to upload and overwrite files.
    
    References
    ==========
    
    https://bugs.archlinux.org/task/67794
    https://www.djangoproject.com/weblog/2020/sep/01/security-releases/
    https://github.com/django/django/commit/934430d22aa5d90c2ba33495ff69a6a1d997d584
    https://github.com/django/django/commit/2b099caa5923afa8cfb5f1e8c0d56b6e0e81915b
    https://security.archlinux.org/CVE-2020-24583
    https://security.archlinux.org/CVE-2020-24584
    

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