Resource Exhaustion Affecting python39-idna package, versions <0:2.10-3.module+el8.4.0+20109+b7b1db01

Q: How to fix?

<p>Upgrade <code>Oracle:8</code> <code>python39-idna</code> to version 0:2.10-3.module+el8.4.0+20109+b7b1db01 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-PYTHON39IDNA-2592636
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-idna to version 0:2.10-3.module+el8.4.0+20109+b7b1db01 or higher.
This issue was patched in ELSA-2021-4160.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python39-idna package and not the python39-idna 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-idna package, versions <0:2.10-3.module+el8.4.0+20109+b7b1db01

Severity

Based on Oracle Linux security rating