Arch Linux alert ASA-202102-18 (python-django)

From:
             
 
Remi Gacogne via arch-security <arch-security@lists.archlinux.org>
To:
             
 
arch-security@archlinux.org
Subject:
             
 
[ASA-202102-18] python-django: directory traversal
Date:
             
 
Fri, 12 Feb 2021 08:10:00 +0100
Message-ID:
             
 
<92e12a27-79f6-1fda-4d02-d3635ae83154@archlinux.org>
Cc:
             
 
Remi Gacogne <rgacogne@archlinux.org>
Arch Linux Security Advisory ASA-202102-18
==========================================

Severity: Low
Date    : 2021-02-07
CVE-ID  : CVE-2021-3281
Package : python-django
Type    : directory traversal
Remote  : No
Link    : https://security.archlinux.org/AVG-1518

Summary
=======

The package python-django before version 3.1.6-1 is vulnerable to
directory traversal.

Resolution
==========

Upgrade to 3.1.6-1.

# pacman -Syu "python-django>=3.1.6-1"

The problem has been fixed upstream in version 3.1.6.

Workaround
==========

None.

Description
===========

In Django 2.2 before 2.2.18, 3.0 before 3.0.12, and 3.1 before 3.1.6,
the django.utils.archive.extract method (used by "startapp --template"
and "startproject --template") allows directory traversal via an
archive with absolute paths or relative paths with dot segments.

Impact
======

An attacker might be able to write files in arbitrary file system
locations by tricking the user to select a crafted template file that
leads to directory traversal.

References
==========

https://www.djangoproject.com/weblog/2021/feb/01/security...
https://github.com/django/django/commit/02e6592835b455990...
https://security.archlinux.org/CVE-2021-3281