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

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CVE-2023-52584

Severity CVSS v4.0:
Pending analysis
Type:
CWE-416 Use After Free
Publication date:
06/03/2024
Last modified:
14/03/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> spmi: mediatek: Fix UAF on device remove<br /> <br /> The pmif driver data that contains the clocks is allocated along with<br /> spmi_controller.<br /> On device remove, spmi_controller will be freed first, and then devres<br /> , including the clocks, will be cleanup.<br /> This leads to UAF because putting the clocks will access the clocks in<br /> the pmif driver data, which is already freed along with spmi_controller.<br /> <br /> This can be reproduced by enabling DEBUG_TEST_DRIVER_REMOVE and<br /> building the kernel with KASAN.<br /> <br /> Fix the UAF issue by using unmanaged clk_bulk_get() and putting the<br /> clocks before freeing spmi_controller.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 3.80 LOW
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

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

Base Score 3.x
3.80
Severity 3.x
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.1.77 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.6.16 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.7.4 (excluding)

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


References to Advisories, Solutions, and Tools