Improper Input Validation Affecting python39-libs package, versions <0:3.9.18-3.module+el8.10.0+21142+453d2b75


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.2% (60th percentile)

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  • Snyk IDSNYK-CENTOS8-PYTHON39LIBS-5499413
  • published8 May 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 Centos:8 python39-libs to version 0:3.9.18-3.module+el8.10.0+21142+453d2b75 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python39-libs package and not the python39-libs package as distributed by Centos. See How to fix? for Centos:8 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