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CVE-2019-16056 Affecting python3-tools package, versions <0:3.7.4-1.amzn2.0.3

Severity

 Recommended
medium

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.44% (76th percentile)

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  • Snyk ID SNYK-AMZN2-PYTHON3TOOLS-1676899
  • published 27 Sep 2021
  • disclosed 6 Sep 2019
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Introduced: 6 Sep 2019

CVE-2019-16056 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 python3-tools to version 0:3.7.4-1.amzn2.0.3 or higher.
This issue was patched in ALAS2-2019-1368.

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.

An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally.

References

CVSS Scores

version 3.1
Expand this section

NVD

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