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Improper Input Validation Affecting python3.9 package, versions <3.9.0~b5-1

low

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 1.11% (85th percentile)
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NVD
7.5 high
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SUSE
5.3 medium
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Red Hat
7.5 high

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  • Snyk ID SNYK-DEBIAN11-PYTHON39-595683
  • published 14 Jul 2020
  • 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

How to fix?

Upgrade Debian:11 python3.9 to version 3.9.0~b5-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3.9 package and not the python3.9 package as distributed by Debian. See How to fix? for Debian:11 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