CVE-2024-50281

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  3. CVE-2024-50281

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

I

n the Linux kernel, the following vulnerability has been resolved: KEYS: trusted: dcp: fix NULL dereference in AEAD crypto operation When sealing or unsealing a key blob we currently do not wait for the AEAD cipher operation to finish and simply return after submitting the request. If there is some load on the system we can exit before the cipher operation is done and the buffer we read from/write to is already removed from the stack. This will e.g. result in NULL pointer dereference errors in the DCP driver during blob creation. Fix this by waiting for the AEAD cipher operation to finish before resuming the seal and unseal calls.

References
Link Resource
https://git.kernel.org/stable/c/04de7589e0a95167d803ecadd115235ba2c14997 Patch
https://git.kernel.org/stable/c/c75e0272289eae18c5379518a9c56ef31d65cc7d Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.10.7:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc6:*:*:*:*:*:*
History

21 Nov 2024, 19:27

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/04de7589e0a95167d803ecadd115235ba2c14997 - () https://git.kernel.org/stable/c/04de7589e0a95167d803ecadd115235ba2c14997 - Patch
References () https://git.kernel.org/stable/c/c75e0272289eae18c5379518a9c56ef31d65cc7d - () https://git.kernel.org/stable/c/c75e0272289eae18c5379518a9c56ef31d65cc7d - Patch
First Time Linux
Linux linux Kernel
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.10.7:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*
CWE CWE-476

19 Nov 2024, 21:57

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: KEYS: trusted: dcp: fix NULL dereference in AEAD cryptooperation Al sellar o desellar un blob de claves, actualmente no esperamos a que finalice la operación de cifrado AEAD y simplemente regresamos después de enviar la solicitud. Si hay alguna carga en el sistema, podemos salir antes de que finalice la operación de cifrado y el búfer desde el que leemos/escribimos ya se eliminó de la pila. Esto, por ejemplo, dará como resultado errores de desreferencia de puntero NULL en el controlador DCP durante la creación del blob. Solucione esto esperando a que finalice la operación de cifrado AEAD antes de reanudar las llamadas de sellado y dessellado.

19 Nov 2024, 02:16

Type Values Removed Values Added
New CVE
Information

Published : 2024-11-19 02:16

Updated : 2025-10-01 21:16

NVD link : CVE-2024-50281

Mitre link : CVE-2024-50281

CVE.ORG link : CVE-2024-50281

JSON object : View

Products Affected

linux

CWE
CWE-476

NULL Pointer Dereference