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USN-5948-1: Werkzeug vulnerabilities

13 March 2023

Several security issues were fixed in Werkzeug.

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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)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 22.10
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

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

References

Related notices

  • USN-5948-2: python3-werkzeug, python-werkzeug-doc, python-werkzeug

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Further reading