Directory Traversal Affecting python3-pip package, versions <0:20.2.2-1.amzn2.0.2


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.4% (75th percentile)

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  • Snyk IDSNYK-AMZN2-PYTHON3PIP-1699020
  • published27 Sept 2021
  • disclosed4 Sept 2020

Introduced: 4 Sep 2020

CVE-2019-20916  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 python3-pip to version 0:20.2.2-1.amzn2.0.2 or higher.
This issue was patched in ALAS2-2021-1639.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-pip package and not the python3-pip package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

The pip package before 19.2 for Python allows Directory Traversal when a URL is given in an install command, because a Content-Disposition header can have ../ in a filename, as demonstrated by overwriting the /root/.ssh/authorized_keys file. This occurs in _download_http_url in _internal/download.py.

CVSS Scores

version 3.1