What is CVE-2024-36012?

CVE-2024-36012 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Use After Free flaw (CWE-416), affecting Linux kernel versions from 5.12 onward and patched in 6.1.91, 6.6.31, 6.8.10 and others. CVE-2024-36012 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-36012?

CVE-2024-36012 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2024-36012?

Yes, CVE-2024-36012 has been patched. Fixed versions include 6.1.91, 6.6.31, 6.8.10 and others. If you are running Linux kernel 5.12 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-36012 actively exploited?

CVE-2024-36012 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2024-36012

High

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: msft: fix slab-use-after-free in msft_do_close() Tying the msft->data lifetime to hdev by freeing it in hci_release_dev() to fix the following case: [use] msft_do_close() msft = hdev->msft_data; if (!msft) ...(1) <- passed. return; mutex_lock(&msft->filter_lock); ...(4) <- used after freed. [free] msft_unregister() msft = hdev->msft_data; hdev->msft_data = NULL; ...(2) kfree(msft); ...(3) <- msft is freed. ================================================================== BUG: KASAN: slab-use-after-free in __mutex_lock_common kernel/locking/mutex.c:587 [inline] BUG: KASAN: slab-use-after-free in __mutex_lock+0x8f/0xc30 kernel/locking/mutex.c:752 Read of size 8 at addr ffff888106cbbca8 by task kworker/u5:2/309

Package Linux Kernel

Published 2024-05-23

Last modified 2025-01-06

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-416

CVE-2024-36012 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.12 and later are affected. Fixed in 6.1.91, 6.6.31, 6.8.10, 6.9 and their respective stable series.

Affected from

≥ 5.12

Fixed in

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

References

4 total

Kernel Git
https://git.kernel.org/stable/c/10f9f426ac6e752c8d87bf4346930ba347aaabac

Patch
Kernel Git
https://git.kernel.org/stable/c/4f1de02de07748da80a8178879bc7a1df37fdf56

Patch
Kernel Git
https://git.kernel.org/stable/c/a85a60e62355e3bf4802dead7938966824b23940

Patch
Kernel Git
https://git.kernel.org/stable/c/e3880b531b68f98d3941d83f2f6dd11cf4fd6b76

Patch

Details

CVE ID CVE-2024-36012

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-05-23

Modified 2025-01-06

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-36012?

CVE-2024-36012 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Use After Free flaw (CWE-416) . It affects Linux kernel versions from 5.12 onward and has been patched in 6.1.91, 6.6.31, 6.8.10 and others. CVE-2024-36012 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-36012?

CVE-2024-36012 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2024-36012?

Yes. CVE-2024-36012 has been patched. Fixed versions include 6.1.91, 6.6.31, 6.8.10 and others. If you are running Linux kernel 5.12 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-36012 actively exploited?

No. CVE-2024-36012 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.