[USN-6414-2] Django vulnerabilities

[Leonidas S. Barbosa]

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Ubuntu Security Notice USN-6414-2
October 04, 2023

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

- Ubuntu 18.04 LTS (Available with Ubuntu Pro)

Summary:

Several security issues were fixed in Django.

Software Description:
- python-django: High-level Python web development framework

Details:

USN-6414-1 and USN-6378-1 fixed CVE-2023-43665 and CVE-2023-41164 in Django,
respectively. This update provides the corresponding update for Ubuntu 18.04 LTS.

Original advisory details:

 Wenchao Li discovered that the Django Truncator function incorrectly
 handled very long HTML input. A remote attacker could possibly use this
 issue to cause Django to consume resources, leading to a denial of service.

 It was discovered that Django incorrectly handled certain URIs with a very
 large number of Unicode characters. A remote attacker could possibly use
 this issue to cause Django to consume resources or crash, leading to a
 denial of service.

Update instructions:

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

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
  python3-django                  1:1.11.11-1ubuntu1.21+esm2

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

References:
  https://ubuntu.com/security/notices/USN-6414-2
  https://ubuntu.com/security/notices/USN-6414-1
  CVE-2023-41164, CVE-2023-43665

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