Debian 11: DLA-3980-1 critical: python3.9 multiple flaws addressed

CVE-2015-20107

The mailcap module did not add escape characters into commands
discovered in the system mailcap file

CVE-2020-10735

Prevent DoS with very large int

CVE-2021-3426

Remove the pydoc getfile feature which could be abused to read
arbitrary files on the disk

CVE-2021-3733

Regular Expression Denial of Service in urllib's
AbstractBasicAuthHandler class

CVE-2021-3737

Infinite loop in the HTTP client code

CVE-2021-4189

Make ftplib not trust the PASV response

CVE-2021-28861

Open redirection vulnerability in http.server

CVE-2021-29921

Leading zeros in IPv4 addresses are no longer tolerated

CVE-2022-42919

Don't use Linux abstract sockets for multiprocessing

CVE-2022-45061

Quadratic time in the IDNA decoder

CVE-2023-6597

tempfile.TemporaryDirectory failure to remove dir

CVE-2023-24329

Strip C0 control and space chars in urlsplit

CVE-2023-27043

Reject malformed addresses in email.parseaddr()

CVE-2023-40217