CVE-2024-36896

Severity CVSS v4.0:

Pending analysis

Type:

CWE-476 NULL Pointer Dereference

Publication date:

30/05/2024

Last modified:

01/04/2025

Description

In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix access violation during port device removal Testing with KASAN and syzkaller revealed a bug in port.c:disable_store(): usb_hub_to_struct_hub() can return NULL if the hub that the port belongs to is concurrently removed, but the function does not check for this possibility before dereferencing the returned value. It turns out that the first dereference is unnecessary, since hub->intfdev is the parent of the port device, so it can be changed easily. Adding a check for hub == NULL prevents further problems. The same bug exists in the disable_show() routine, and it can be fixed the same way.

Impact

Vector 3.x

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

Base Score: 9.10 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

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

Base Score 3.x

9.10

Severity 3.x

CRITICAL

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	6.0 (including)	6.1.91 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.31 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.8.10 (excluding)
cpe:2.3:o:linux:linux_kernel:6.9:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.9:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.9:rc3::::::
cpe:2.3:o:linux:linux_kernel:6.9:rc4::::::
cpe:2.3:o:linux:linux_kernel:6.9:rc5::::::
cpe:2.3:o:linux:linux_kernel:6.9:rc6::::::

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

CVE-2024-36896

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools