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Resource Exhaustion Affecting python2.7 package, versions <2.7.17-1~18.04ubuntu1

Severity

low

    Threat Intelligence

    EPSS
    0.6% (78th percentile)

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  • Snyk ID SNYK-UBUNTU1804-PYTHON27-567118
  • published 30 Jan 2020
  • 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 Ubuntu:18.04 python2.7 to version 2.7.17-1~18.04ubuntu1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python2.7 package and not the python2.7 package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 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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Snyk

6.5 low
  • 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
Expand this section
NVD
6.5 medium
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SUSE
6.5 medium
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Red Hat
6.5 medium