Resource Exhaustion Affecting python39-cryptography package, versions <0:3.3.1-2.module+el8.4.0+20109+b7b1db01


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.44% (75th percentile)

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  • Snyk IDSNYK-ORACLE8-PYTHON39CRYPTOGRAPHY-2591499
  • published10 Apr 2022
  • disclosed29 Jun 2021

Introduced: 29 Jun 2021

CVE-2021-33503  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Oracle:8 python39-cryptography to version 0:3.3.1-2.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-cryptography package and not the python39-cryptography 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.

CVSS Scores

version 3.1