Loop with Unreachable Exit Condition ('Infinite Loop') Affecting python3-libxml2 package, versions <0:2.9.7-8.el8


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.59% (80th percentile)

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  • Snyk IDSNYK-RHEL8-PYTHON3LIBXML2-3825443
  • published26 Jul 2021
  • disclosed21 Jan 2020

Introduced: 21 Jan 2020

CVE-2020-7595  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade RHEL:8 python3-libxml2 to version 0:2.9.7-8.el8 or higher.
This issue was patched in RHSA-2020:4479.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-libxml2 package and not the python3-libxml2 package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

xmlStringLenDecodeEntities in parser.c in libxml2 2.9.10 has an infinite loop in a certain end-of-file situation.

References

CVSS Scores

version 3.1