Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2022-48703

Severity CVSS v4.0:
Pending analysis
Type:
CWE-476 NULL Pointer Dereference
Publication date:
03/05/2024
Last modified:
05/03/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> thermal/int340x_thermal: handle data_vault when the value is ZERO_SIZE_PTR<br /> <br /> In some case, the GDDV returns a package with a buffer which has<br /> zero length. It causes that kmemdup() returns ZERO_SIZE_PTR (0x10).<br /> <br /> Then the data_vault_read() got NULL point dereference problem when<br /> accessing the 0x10 value in data_vault.<br /> <br /> [ 71.024560] BUG: kernel NULL pointer dereference, address:<br /> 0000000000000010<br /> <br /> This patch uses ZERO_OR_NULL_PTR() for checking ZERO_SIZE_PTR or<br /> NULL value in data_vault.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H 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:N/I:N/A:H

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

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:*:*:*:*:*:*:*:* 5.19.9 (excluding)
cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools