CVE-2024-36012

Bluetooth: msft: fix slab-use-after-free in msft_do_close()

Severity Score

"-"

*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: Bluetooth: msft: corrija slab-use-after-free en msft_do_close() Vinculando la vida útil de msft->data a hdev liberándolo en hci_release_dev() para solucionar el siguiente caso: [usar] msft_do_close() msft = hdev->msft_data; if (!msft) ...(1) <- aprobado. devolver; mutex_lock(&msft->filter_lock); ...(4) <- usado después de liberado. [gratis] msft_unregister() msft = hdev->msft_data; hdev->msft_data = NULL; ...(2) klibre(msft); ...(3) <- se libera msft. ==================================================== ================ ERROR: KASAN: slab-use-after-free en __mutex_lock_common kernel/locking/mutex.c:587 [en línea] ERROR: KASAN: slab-use-after -free en __mutex_lock+0x8f/0xc30 kernel/locking/mutex.c:752 Lectura de tamaño 8 en addr ffff888106cbbca8 por tarea kworker/u5:2/309

*Credits: N/A

CVSS Scores

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-05-17 CVE Reserved
2024-05-23 CVE Published
2024-05-23 EPSS Updated
2024-12-19 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (5)

URL	Tag	Source
https://git.kernel.org/stable/c/bf6a4e30ffbd9e9ef8934582feb937f6532f8b68	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/e3880b531b68f98d3941d83f2f6dd11cf4fd6b76	2024-05-17
https://git.kernel.org/stable/c/a85a60e62355e3bf4802dead7938966824b23940	2024-05-17
https://git.kernel.org/stable/c/4f1de02de07748da80a8178879bc7a1df37fdf56	2024-05-17
https://git.kernel.org/stable/c/10f9f426ac6e752c8d87bf4346930ba347aaabac	2024-05-03

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.12 < 6.1.91 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.12 < 6.1.91"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.12 < 6.6.31 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.12 < 6.6.31"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.12 < 6.8.10 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.12 < 6.8.10"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.12 < 6.9 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.12 < 6.9"		en		Affected