Ubuntu 22.10: USN-5948-1 Moderate: Werkzeug Remote Attack & DoS

ubuntu

March 13, 2023

Several security issues were fixed in Werkzeug.

Summary

Several security issues were fixed in Werkzeug.

Software Description:

- python-werkzeug: documentation for the werkzeug Python library (docs)

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)

Topics Covered

security advisory denial of service remote attack ubuntu python package werkzeug

Update Instructions

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

Ubuntu 22.10:
   python3-werkzeug                2.0.2+dfsg1-3ubuntu0.22.10.1

Ubuntu 22.04 LTS:
   python3-werkzeug                2.0.2+dfsg1-1ubuntu0.22.04.1

Ubuntu 20.04 LTS:
   python3-werkzeug                0.16.1+dfsg1-2ubuntu0.1

Ubuntu 18.04 LTS:
   python-werkzeug                 0.14.1+dfsg1-1ubuntu0.2
   python3-werkzeug                0.14.1+dfsg1-1ubuntu0.2

Ubuntu 16.04 ESM:
   python-werkzeug                 0.10.4+dfsg1-1ubuntu1.2+esm1
   python3-werkzeug                0.10.4+dfsg1-1ubuntu1.2+esm1

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