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Resource Exhaustion Affecting python3-tools package, versions <0:3.7.8-1.amzn2.0.1

Severity

 Recommended
0.0
medium
0
10

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.6% (79th percentile)

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  • Snyk ID SNYK-AMZN2-PYTHON3TOOLS-1682960
  • published 27 Sep 2021
  • disclosed 30 Jan 2020
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Introduced: 30 Jan 2020

CVE-2020-8492 Open this link in a new tab
CWE-400 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 python3-tools to version 0:3.7.8-1.amzn2.0.1 or higher.
This issue was patched in ALAS2-2020-1471.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-tools package and not the python3-tools package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking.

References

CVSS Scores

version 3.1
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NVD

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

6.5 medium
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SUSE

6.5 medium