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Ubuntu Security Notice USN-7244-1
January 30, 2025

jinja2 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 24.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in jinja2.

Software Description:
- jinja2: small but fast and easy to use stand-alone template engine

Details:

It was discovered that Jinja2 incorrectly handled certain filenames when
compiling template content. An attacker could possibly use this issue to
execute arbitrary code. (CVE-2024-56201)

It was discovered that Jinja2 incorrectly handled string formatting calls.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2024-56326)

Update instructions:

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

Ubuntu 24.10
  python3-jinja2                  3.1.3-1ubuntu1.24.10.1

Ubuntu 24.04 LTS
  python3-jinja2                  3.1.2-1ubuntu1.2

Ubuntu 22.04 LTS
  python3-jinja2                  3.0.3-1ubuntu0.3

Ubuntu 20.04 LTS
  python-jinja2                   2.10.1-2ubuntu0.4
  python3-jinja2                  2.10.1-2ubuntu0.4

Ubuntu 18.04 LTS
  python-jinja2                   2.10-1ubuntu0.18.04.1+esm3
                                  Available with Ubuntu Pro
  python3-jinja2                  2.10-1ubuntu0.18.04.1+esm3
                                  Available with Ubuntu Pro

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

References:
  https://ubuntu.com/security/notices/USN-7244-1
  CVE-2024-56201, CVE-2024-56326

Package Information:
https://launchpad.net/ubuntu/+source/jinja2/3.1.3-1ubuntu1.24.10.1
  https://launchpad.net/ubuntu/+source/jinja2/3.1.2-1ubuntu1.2
  https://launchpad.net/ubuntu/+source/jinja2/3.0.3-1ubuntu0.3
  https://launchpad.net/ubuntu/+source/jinja2/2.10.1-2ubuntu0.4