Improper Input Validation Affecting python-3.11 package, versions <3.11.8-r1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.2% (60th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-PYTHON311-6405741
  • published6 Mar 2024
  • disclosed19 Apr 2023

Introduced: 19 Apr 2023

CVE-2023-27043  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Chainguard python-3.11 to version 3.11.8-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-3.11 package and not the python-3.11 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

The email module of Python through 3.11.3 incorrectly parses e-mail addresses that contain a special character. The wrong portion of an RFC2822 header is identified as the value of the addr-spec. In some applications, an attacker can bypass a protection mechanism in which application access is granted only after verifying receipt of e-mail to a specific domain (e.g., only @company.example.com addresses may be used for signup). This occurs in email/_parseaddr.py in recent versions of Python.

References

CVSS Scores

version 3.1