CVE-2023-0459

Published: May 25, 2023Modified: Jun 17, 2026

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitability: 1.8 / Impact: 3.6

Source: NVD

Description

Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec allowing a user to bypass the "access_ok" check and pass a kernel pointer to copy_from_user(). This would allow an attacker to leak information. We recommend upgrading beyond commit 74e19ef0ff8061ef55957c3abd71614ef0f42f47

Affected (7)

Products: Linux: Linux Kernel

Linux

1 product

Linux Kernel

Configuration A

7 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	version < 4.14.307
Linux Linux Kernel	4.19.0 ≤ version < 4.19.274
Linux Linux Kernel	5.10.0 ≤ version < 5.10.170
Linux Linux Kernel	5.15.0 ≤ version < 5.15.96
Linux Linux Kernel	5.4.0 ≤ version < 5.4.233
Linux Linux Kernel	6.1.0 ≤ version < 6.1.14
Linux Linux Kernel	6.2.0 ≤ version < 6.2.1