Debian: CVE-2023-23931: python-cryptography -- security update

Debian: CVE-2023-23931: python-cryptography -- security update

Severity

6

CVSS

(AV:N/AC:L/Au:N/C:N/I:P/A:P)

Published

02/07/2023

Created

02/23/2023

Added

02/23/2023

Modified

01/28/2025

Description

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In affected versions `Cipher.update_into` would accept Python objects which implement the buffer protocol, but provide only immutable buffers. This would allow immutable objects (such as `bytes`) to be mutated, thus violating fundamental rules of Python and resulting in corrupted output. This now correctly raises an exception. This issue has been present since `update_into` was originally introduced in cryptography 1.8.

Solution(s)

• debian-upgrade-python-cryptography

References

• https://attackerkb.com/topics/cve-2023-23931
• CVE - 2023-23931
• DLA-3331-1