Improper Input Validation Affecting python3 package, versions <3.8.5-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.53% (78th percentile)

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  • Snyk IDSNYK-ALPINE321-PYTHON3-8485657
  • published6 Dec 2024
  • disclosed13 Jul 2020

Introduced: 13 Jul 2020

CVE-2019-20907  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Alpine:3.21 python3 to version 3.8.5-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3 package and not the python3 package as distributed by Alpine. See How to fix? for Alpine:3.21 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