What is CVE-2024-36893?

CVE-2024-36893 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476), affecting Linux kernel versions from 5.15.132 onward and patched in 5.15.168, 6.1.91, 6.6.31 and others. CVE-2024-36893 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-36893?

CVE-2024-36893 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2024-36893?

Yes, CVE-2024-36893 has been patched. Fixed versions include 5.15.168, 6.1.91, 6.6.31 and others. If you are running Linux kernel 5.15.132 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-36893 actively exploited?

CVE-2024-36893 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2024-36893

Medium

In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: Check for port partner validity before consuming it typec_register_partner() does not guarantee partner registration to always succeed. In the event of failure, port->partner is set to the error value or NULL. Given that port->partner validity is not checked, this results in the following crash: Unable to handle kernel NULL pointer dereference at virtual address xx pc : run_state_machine+0x1bc8/0x1c08 lr : run_state_machine+0x1b90/0x1c08 .. Call trace: run_state_machine+0x1bc8/0x1c08 tcpm_state_machine_work+0x94/0xe4 kthread_worker_fn+0x118/0x328 kthread+0x1d0/0x23c ret_from_fork+0x10/0x20 To prevent the crash, check for port->partner validity before derefencing it in all the call sites.

Package Linux Kernel

Published 2024-05-30

Last modified 2024-11-21

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-476

CVE-2024-36893 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.15.132, 6.1.53, 6.4.16, 6.5.3, 6.6 and later are affected. Fixed in 5.15.168, 6.1.91, 6.6.31, 6.8.10, 6.9 and their respective stable series.

Affected from

≥ 5.15.132 ≥ 6.1.53 ≥ 6.4.16 ≥ 6.5.3 ≥ 6.6

Fixed in

✓ 5.15.168 5.15.x ✓ 6.1.91 6.1.x ✓ 6.6.31 6.6.x ✓ 6.8.10 6.8.x ✓ 6.9

References

5 total

Kernel Git
https://git.kernel.org/stable/c/789326cafbd1f67f424436b6bc8bdb887a364637

Patch
Kernel Git
https://git.kernel.org/stable/c/ae11f04b452b5205536e1c02d31f8045eba249dd

Patch
Kernel Git
https://git.kernel.org/stable/c/d56d2ca03cc22123fd7626967d096d8661324e57

Patch
Kernel Git
https://git.kernel.org/stable/c/fc2b655cb6dd2b381f1f284989721002e39b6b77

Patch
Kernel Git
https://git.kernel.org/stable/c/2a07e6f0ad8a6e504a3912cfe8dc859b7d0740a5

Details

CVE ID CVE-2024-36893

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-30

Modified 2024-11-21

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-36893?

CVE-2024-36893 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 5.15.132 onward and has been patched in 5.15.168, 6.1.91, 6.6.31 and others. CVE-2024-36893 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-36893?

CVE-2024-36893 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2024-36893?

Yes. CVE-2024-36893 has been patched. Fixed versions include 5.15.168, 6.1.91, 6.6.31 and others. If you are running Linux kernel 5.15.132 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-36893 actively exploited?

No. CVE-2024-36893 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.