Loop with Unreachable Exit Condition ('Infinite Loop') Affecting python-docs package, versions <0:2.7.16-2.module+el8.4.0+403+9ae17a31


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
1.18% (86th percentile)

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  • Snyk IDSNYK-ROCKY8-PYTHONDOCS-3220973
  • published5 Jan 2023
  • disclosed13 Jul 2020

Introduced: 13 Jul 2020

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

How to fix?

Upgrade Rocky-Linux:8 python-docs to version 0:2.7.16-2.module+el8.4.0+403+9ae17a31 or higher.
This issue was patched in RLSA-2020:4654.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-docs package and not the python-docs package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux: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