Loop with Unreachable Exit Condition ('Infinite Loop') Affecting python36:3.6/python3-docs package, versions <0:3.6.7-2.module_el8.5.0+135+5ce32bc4


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
2.76% (85th percentile)

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  • Snyk IDSNYK-ALMALINUX8-PYTHON36-5622650
  • published28 May 2023
  • disclosed9 Nov 2021

Introduced: 9 Nov 2021

CVE-2021-20270  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 python36:3.6/python3-docs to version 0:3.6.7-2.module_el8.5.0+135+5ce32bc4 or higher.
This issue was patched in ALSA-2021:4150.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python36:3.6/python3-docs package and not the python36:3.6/python3-docs package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML (SML) source file, as demonstrated by input that only contains the "exception" keyword.

CVSS Base Scores

version 3.1