Resource Exhaustion Affecting python39-pyyaml package, versions <0:5.4.1-1.module+el8.5.0+20364+c7fe1181

Q: How to fix?

<p>Upgrade <code>Oracle:8</code> <code>python39-pyyaml</code> to version 0:5.4.1-1.module+el8.5.0+20364+c7fe1181 or higher.<br>This issue was patched in <code>ELSA-2021-4160</code>.</p>

Threat Intelligence

0.29% (70^th percentile)

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Snyk ID SNYK-ORACLE8-PYTHON39PYYAML-2588962
published 10 Apr 2022
disclosed 29 Jun 2021

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Introduced: 29 Jun 2021

CVE-2021-33503 Open this link in a new tab CWE-400 Open this link in a new tab

How to fix?

Upgrade Oracle:8 python39-pyyaml to version 0:5.4.1-1.module+el8.5.0+20364+c7fe1181 or higher.
This issue was patched in ELSA-2021-4160.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python39-pyyaml package and not the python39-pyyaml package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Network
Attack Complexity (AC)

Low
Privileges Required (PR)

None
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

None
Integrity (I)

None
Availability (A)

High

Resource Exhaustion Affecting python39-pyyaml package, versions <0:5.4.1-1.module+el8.5.0+20364+c7fe1181

Severity

Based on Oracle Linux security rating