Loop with Unreachable Exit Condition ('Infinite Loop') Affecting python2-urllib3 package, versions <0:1.24.2-3.module+el8.4.0+9193+f3daf6ef


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.31% (71st percentile)

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  • Snyk IDSNYK-CENTOS8-PYTHON2URLLIB3-2127942
  • published26 Jul 2021
  • disclosed10 Dec 2020

Introduced: 10 Dec 2020

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

How to fix?

Upgrade Centos:8 python2-urllib3 to version 0:1.24.2-3.module+el8.4.0+9193+f3daf6ef or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python2-urllib3 package and not the python2-urllib3 package as distributed by Centos. See How to fix? for Centos: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 Scores

version 3.1