<p>Upgrade <code>Amazon-Linux:2</code> <code>python-libs</code> to version 0:2.7.18-1.amzn2.0.2 or higher.<br>This issue was patched in <code>ALAS2-2020-1483</code>.</p>

Improper Input Validation Affecting python-libs package, versions <0:2.7.18-1.amzn2.0.2

Threat Intelligence

1.18% (86^th percentile)

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Snyk ID SNYK-AMZN2-PYTHONLIBS-1683486
published 27 Sep 2021
disclosed 13 Jul 2020

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Introduced: 13 Jul 2020

CVE-2019-20907 Open this link in a new tab CWE-20 Open this link in a new tab CWE-835 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 python-libs to version 0:2.7.18-1.amzn2.0.2 or higher.
This issue was patched in ALAS2-2020-1483.

NVD Description

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

In Lib/tarfile.py in Python through 3.8.3, an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Network
Attack Complexity (AC)

Low
Privileges Required (PR)

None
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

None
Integrity (I)

None
Availability (A)

High

Improper Input Validation Affecting python-libs package, versions <0:2.7.18-1.amzn2.0.2

Severity

Based on Amazon Linux security rating