Resource Exhaustion Affecting python2-ipaddress package, versions <0:1.0.18-6.module+el8.3.0+7833+4aaf98ce


Severity

Recommended
0.0
medium
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.24% (62nd percentile)

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  • Snyk IDSNYK-ORACLE8-PYTHON2IPADDRESS-2592130
  • published10 Apr 2022
  • disclosed1 Feb 2021

Introduced: 1 Feb 2021

CVE-2020-28493  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Oracle:8 python2-ipaddress to version 0:1.0.18-6.module+el8.3.0+7833+4aaf98ce or higher.
This issue was patched in ELSA-2021-4151.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python2-ipaddress package and not the python2-ipaddress package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDoS vulnerability is mainly due to the _punctuation_re regex operator and its use of multiple wildcards. The last wildcard is the most exploitable as it searches for trailing punctuation. This issue can be mitigated by Markdown to format user content instead of the urlize filter, or by implementing request timeouts and limiting process memory.

CVSS Scores

version 3.1