CVE-2023-0459

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

25/05/2023

Last modified:

06/06/2023

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

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		4.14.307 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.19.0 (including)	4.19.274 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.4.0 (including)	5.4.233 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.10.0 (including)	5.10.170 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.15.0 (including)	5.15.96 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.1.0 (including)	6.1.14 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2.0 (including)	6.2.1 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-0459

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools