USN-7244-1: Jinja2 vulnerabilities

USN-7244-1: Jinja2 vulnerabilities
30 January 2025

Several security issues were fixed in jinja2.

Releases

• Ubuntu 24.10
• Ubuntu 24.04 LTS
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages
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
• python3-jinja2 - 3.1.2-1ubuntu1.2
  Ubuntu 22.04
• python3-jinja2 - 3.0.3-1ubuntu0.3

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