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Medium ALAS2023-2023-149 1 CVE

Moderate: python-werkzeug security update (Amazon Linux 2023)

Published Mar 30, 2023 · Updated Apr 4, 2023

Summary

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2023-23934: Werkzeug is a comprehensive WSGI web application library. Browsers may allow "nameless" cookies that look like `=value` instead of `key=value`. A vulnerable browser may allow a compromised application on an adjacent subdomain to exploit this to set a cookie like `=__Host-test=bad` for another subdomain. Werkzeug prior to 2.2.3 will parse the cookie `=__Host-test=bad` as __Host-test=bad`. If a Werkzeug application is running next to a vulnerable or malicious subdomain which sets such a cookie using a vulnerable browser, the Werkzeug application will see the bad cookie value but the valid cookie key. The issue is fixed in Werkzeug 2.2.3.

Fixed packages 2

ReleasePackageFixed in
Amazon Linux · 2023 python3-werkzeug 0:1.0.1-5.amzn2023.0.4
Amazon Linux · 2023 python3-werkzeug-doc 0:1.0.1-5.amzn2023.0.4

Vulnerabilities 1

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2023-23934.html