Inefficient Regular Expression Complexity Affecting python39-pyyaml package, versions <0:5.4.1-1.module+el8.9.0+90016+9c2d6573


Severity

Recommended
0.0
medium
0
10

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.53% (78th percentile)

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  • Snyk ID SNYK-ORACLE8-PYTHON39PYYAML-7162375
  • published 30 May 2024
  • disclosed 23 Dec 2022

How to fix?

Upgrade Oracle:8 python39-pyyaml to version 0:5.4.1-1.module+el8.9.0+90016+9c2d6573 or higher.
This issue was patched in ELSA-2024-2985.

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.

Python Packaging Authority (PyPA) setuptools before 65.5.1 allows remote attackers to cause a denial of service via HTML in a crafted package or custom PackageIndex page. There is a Regular Expression Denial of Service (ReDoS) in package_index.py.

CVSS Scores

version 3.1
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NVD

5.9 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
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SUSE

4.3 medium
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Red Hat

5.9 medium