CVE-2023-23931

MEDIUM6.5EPSS 0.69%

Cipher.update_into can corrupt memory if passed an immutable python object as the outbuf

發布日:2023/2/7修改日:2026/4/28

描述

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.

受影響套件(7)

Alpine/py3-cryptographyfrom 0, < 39.0.1-r0
Debian/python-cryptographyfrom 0, < 3.3.2-1+deb11u1
Debian/python-cryptographyfrom 0, < 2.6.1-3+deb10u3
Debian/python-cryptographyfrom 0, < 2.6.1-3+deb10u4
Debian/python-cryptographyfrom 0, < 3.3.2-1+deb11u1
PyPI/cryptography>= 1.8, < 39.0.1
PyPI/cryptographyfrom 0, < 94a50a9731f35405f0357fa5f3b177d46a726ab3 | >= 1.8, < 39.0.1

CVSS 分數

來源	版本	嚴重程度	向量
osv	CVSS 4.0	—	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
osv	CVSS 3.1	MEDIUM6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

描述

受影響套件(7)

CVSS 分數

參考連結(11)