CVE-2024-38614

openrisc: traps: Don't send signals to kernel mode threads

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:

openrisc: traps: Don't send signals to kernel mode threads

OpenRISC exception handling sends signals to user processes on floating
point exceptions and trap instructions (for debugging) among others.
There is a bug where the trap handling logic may send signals to kernel
threads, we should not send these signals to kernel threads, if that
happens we treat it as an error.

This patch adds conditions to die if the kernel receives these
exceptions in kernel mode code.

En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: openrisc: trampas: no envía señales a subprocesos en modo kernel. El manejo de excepciones de OpenRISC envía señales a los procesos del usuario sobre excepciones de punto flotante e instrucciones de captura (para depuración), entre otros. Hay un error en el que la lógica de manejo de trampas puede enviar señales a los subprocesos del kernel. No debemos enviar estas señales a los subprocesos del kernel; si eso sucede, lo tratamos como un error. Este parche agrega condiciones para morir si el kernel recibe estas excepciones en el código del modo kernel.

*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

2024-06-18 CVE Reserved
2024-06-19 CVE Published
2024-06-20 EPSS Updated
2024-11-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (5)

URL	Tag	Source
https://git.kernel.org/stable/c/27267655c5313ba0f5a3caa9ad35d887d9a12574	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/c0ed9a711e3392d73e857faa031d8d349c0d70db	2024-06-12
https://git.kernel.org/stable/c/075c0405b0d7d9fc490609e988a3af0069596538	2024-05-30
https://git.kernel.org/stable/c/cea9d0015c140af39477dd5eeb9b20233a45daa9	2024-05-30
https://git.kernel.org/stable/c/c88cfb5cea5f8f9868ef02cc9ce9183a26dcf20f	2024-04-15

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"				>= 6.4 < 6.6.33 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.4 < 6.6.33"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.4 < 6.8.12 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.4 < 6.8.12"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.4 < 6.9.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.4 < 6.9.3"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.4 < 6.10 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.4 < 6.10"		en		Affected