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Ubuntu Security Notice USN-4655-1

Ubuntu Security Notice USN-4655-1
Posted Dec 1, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4655-1 - It was discovered that Werkzeug has insufficient debugger PIN randomness. An attacker could use this issue to access sensitive information. This issue only affected Ubuntu 18.04 LTS. It was discovered that Werkzeug incorrectly handled certain URLs. An attacker could possibly use this issue to cause phishing attacks. This issue only affected Ubuntu 16.04 LTS.

tags | advisory
systems | linux, ubuntu
advisories | CVE-2019-14806, CVE-2020-28724
MD5 | ce431abe7eb561d35f930c7d3b02aba5

Ubuntu Security Notice USN-4655-1

Change Mirror Download
=========================================================================
Ubuntu Security Notice USN-4655-1
December 01, 2020

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

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in Werkzeug.

Software Description:
- python-werkzeug: collection of utilities for WSGI applications (Python 2.x)

Details:

It was discovered that Werkzeug has insufficient debugger PIN randomness.
An attacker could use this issue to access sensitive information. This issue only
affected Ubuntu 18.04 LTS. (CVE-2019-14806)

It was discovered that Werkzeug incorrectly handled certain URLs.
An attacker could possibly use this issue to cause pishing attacks.
This issue only affected Ubuntu 16.04 LTS. (CVE-2020-28724)

Update instructions:

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

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

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

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

References:
https://usn.ubuntu.com/4655-1
CVE-2019-14806, CVE-2020-28724

Package Information:
https://launchpad.net/ubuntu/+source/python-werkzeug/0.14.1+dfsg1-1ubuntu0.1
https://launchpad.net/ubuntu/+source/python-werkzeug/0.10.4+dfsg1-1ubuntu1.2
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