[USN-5948-2] Werkzeug vulnerabilities

[Fabian Toepfer]

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Ubuntu Security Notice USN-5948-2
June 20, 2023

python-werkzeug vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.04

Summary:

Several security issues were fixed in Werkzeug.

Software Description:
- python-werkzeug: collection of utilities for WSGI applications

Details:

USN-5948-1 fixed vulnerabilities in Werkzeug. This update provides the
corresponding updates for Ubuntu 23.04.

Original advisory details:

  It was discovered that Werkzeug did not properly handle the parsing of
  nameless cookies. A remote attacker could possibly use this issue to
  shadow other cookies. (CVE-2023-23934)

  It was discovered that Werkzeug could be made to process unlimited number
  of multipart form data parts. A remote attacker could possibly use this
  issue to cause Werkzeug to consume resources, leading to a denial of
  service. (CVE-2023-25577)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 23.04:
   python3-werkzeug                2.2.2-2ubuntu0.1

In general, a standard system update will make all the necessary changes.

References:
   https://ubuntu.com/security/notices/USN-5948-2
   https://ubuntu.com/security/notices/USN-5948-1
   CVE-2023-23934, CVE-2023-25577

Package Information:
https://launchpad.net/ubuntu/+source/python-werkzeug/2.2.2-2ubuntu0.1

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