MGASA-2023-0071 - Updated python-cryptography packages fix security vulnerability

Publication date: 27 Feb 2023
URL: https://advisories.mageia.org/MGASA-2023-0071.html
Type: security
Affected Mageia releases: 8
CVE: CVE-2023-23931

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. (CVE-2023-23931)

References:
- https://bugs.mageia.org/show_bug.cgi?id=31584
- https://www.debian.org/lts/security/2023/dla-3331
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-23931

SRPMS:
- 8/core/python-cryptography-3.3.1-1.2.mga8

Mageia 2023-0071: python-cryptography security update

Cipher.update_into would accept Python objects which implement the buffer protocol, but provide only immutable buffers

Summary

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. (CVE-2023-23931)