USN-5948-1: Werkzeug vulnerabilities

Releases

• Ubuntu 22.10
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

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)

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

• python3-werkzeug - 2.0.2+dfsg1-1ubuntu0.22.04.1

Ubuntu 20.04

• python3-werkzeug - 0.16.1+dfsg1-2ubuntu0.1

Ubuntu 18.04

• python3-werkzeug - 0.14.1+dfsg1-1ubuntu0.2
• python-werkzeug - 0.14.1+dfsg1-1ubuntu0.2

Ubuntu 16.04

• python3-werkzeug - 0.10.4+dfsg1-1ubuntu1.2+esm1
  Available with Ubuntu Pro
• python-werkzeug - 0.10.4+dfsg1-1ubuntu1.2+esm1
  Available with Ubuntu Pro

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

References

• CVE-2023-23934
• CVE-2023-25577

Related notices

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