medium
5.3
CWE
20
Advisory Published
Updated

CVE-2023-27043: Input Validation

First published: Tue Apr 18 2023(Updated: )

Last updated 14 October 2024

Credit: cve@mitre.org cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Python Python<=2.7.18
Python Python>=3.0<=3.11
IBM Cognos Dashboards on Cloud Pak for Data<=4.7.0
debian/pypy3<=7.3.5+dfsg-2+deb11u2<=7.3.5+dfsg-2+deb11u3<=7.3.11+dfsg-2+deb12u2<=7.3.17+dfsg-2
debian/python2.7<=2.7.18-8+deb11u1
debian/python3.11<=3.11.2-6+deb12u4<=3.11.2-6+deb12u3
debian/python3.12
3.12.7-3
debian/python3.9<=3.9.2-1

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-27043?

    CVE-2023-27043 is a vulnerability in the Python email module that allows a remote attacker to bypass security restrictions due to a parsing flaw in email addresses.

  • What is the severity of CVE-2023-27043?

    The severity of CVE-2023-27043 is medium, with a CVSS severity score of 5.3.

  • Which software versions are affected by CVE-2023-27043?

    Python versions up to and including 2.7.18 and Python versions between 3.0 and 3.11.3 are affected by CVE-2023-27043.

  • How can an attacker exploit CVE-2023-27043?

    An attacker can exploit CVE-2023-27043 by manipulating email addresses containing special characters to bypass security mechanisms and gain unauthorized access.

  • Is there a fix available for CVE-2023-27043?

    Yes, upgrading to a fixed version of Python (2.7.19 or 3.11.4) or applying the necessary patches provided by the vendor can resolve the CVE-2023-27043 vulnerability.

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