VULNERABILITY INTELLIGENCE

CVE-2023-0459

CVSS score6.5 MEDIUM
EPSS probability0.64%
CISA KEVNot currently listed
Published2023-05-25
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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

Weakness classification

  • CWE-763: Release of Invalid Pointer or Reference

Primary references