Loop with Unreachable Exit Condition ('Infinite Loop') Affecting python3-docutils package, versions <0:0.14-12.module+el8.4.0+597+ddf0ddea


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.53% (77th percentile)

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  • Snyk IDSNYK-ROCKY8-PYTHON3DOCUTILS-3220962
  • 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 python3-docutils to version 0:0.14-12.module+el8.4.0+597+ddf0ddea or higher.
This issue was patched in RLSA-2020:4654.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-docutils package and not the python3-docutils 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