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Improper Input Validation Affecting python3-libs package, versions <0:3.6.8-23.el8

Severity

 Recommended
medium

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.44% (76th percentile)

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  • Snyk ID SNYK-RHEL8-PYTHON3LIBS-3726835
  • published 26 Jul 2021
  • disclosed 19 Jul 2018
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Introduced: 19 Jul 2018

CVE-2019-16056 Open this link in a new tab
CWE-20 Open this link in a new tab

How to fix?

Upgrade RHEL:8 python3-libs to version 0:3.6.8-23.el8 or higher.
This issue was patched in RHSA-2020:1764.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-libs package and not the python3-libs package as distributed by RHEL. See How to fix? for RHEL:8 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