CVEvulnerability

CVE-2023-0459

5.5 MEDIUM Published 2023-05-25 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-05-25
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-763

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 configurations

• linux linux kernel (< 4.14.307) • linux linux kernel (>= 4.19.0 < 4.19.274) • linux linux kernel (>= 5.4.0 < 5.4.233) • linux linux kernel (>= 5.10.0 < 5.10.170) • linux linux kernel (>= 5.15.0 < 5.15.96) • linux linux kernel (>= 6.1.0 < 6.1.14) • linux linux kernel (>= 6.2.0 < 6.2.1)

Related

Weakness · CWE (1)

  • CWE-763 Release of Invalid Pointer or Reference weakness

References