Debian LTS: DLA-4087-1: python3.9 Security Advisory Updates

CVE-2022-0391

Functions in the urllib.parse module did not sanitize URLs to remove
newline characters, which could lead to injection attacks.

CVE-2025-0938

Functions in the urllib.parse and urlparse modules accepted domain
names containing square brackets, which isn't valid. These
delimiters are only permitted for IPv6 and IPvFuture hosts. This
problem could result in differential parsing between the Python URL
parser and other specification-compliant URL parsers.

CVE-2025-1795

The implementations of e-mail header parsing and folding would
encode the comma used to separate list items, which could cause
receiving applications to interpret two items in the list as though
they were one item.

For Debian 11 bullseye, these problems have been fixed in version
3.9.2-1+deb11u3.

We recommend that you upgrade your python3.9 packages.

For the detailed security status of python3.9 please refer to
its security tracker page at: