Improper Input Validation Affecting python3-idle package, versions <0:3.6.8-31.el8


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.53% (77th percentile)

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  • Snyk IDSNYK-RHEL8-PYTHON3IDLE-3837106
  • published26 Jul 2021
  • disclosed10 Dec 2019

Introduced: 10 Dec 2019

CVE-2019-20907  (opens in a new tab)
CWE-20  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade RHEL:8 python3-idle to version 0:3.6.8-31.el8 or higher.
This issue was patched in RHSA-2020:4433.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-idle package and not the python3-idle package as distributed by RHEL. See How to fix? for RHEL:8 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