1. Ubuntu Security Notices
  2. USN-5948-1

USN-5948-1: Werkzeug vulnerabilities

Publication date

13 March 2023

Overview

Several security issues were fixed in Werkzeug.

Releases

Packages

  • python-werkzeug - collection of utilities for WSGI applications (Python 2.x)

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)

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
22.10 kinetic python3-werkzeug –  2.0.2+dfsg1-3ubuntu0.22.10.1
22.04 jammy python3-werkzeug –  2.0.2+dfsg1-1ubuntu0.22.04.1
20.04 focal python3-werkzeug –  0.16.1+dfsg1-2ubuntu0.1
18.04 bionic python3-werkzeug –  0.14.1+dfsg1-1ubuntu0.2
python-werkzeug –  0.14.1+dfsg1-1ubuntu0.2
16.04 xenial python3-werkzeug –  0.10.4+dfsg1-1ubuntu1.2+esm1  
python-werkzeug –  0.10.4+dfsg1-1ubuntu1.2+esm1  

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References

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