Improper Input Validation Affecting python2.7 package, versions <2.7.17-1~18.04ubuntu1.13+esm13


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
2.53% (83rd percentile)

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  • Snyk IDSNYK-UBUNTU1804-PYTHON27-5438719
  • published21 Apr 2023
  • 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 Ubuntu:18.04 python2.7 to version 2.7.17-1~18.04ubuntu1.13+esm13 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.

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 Base Scores

version 3.1