CVE-2024-47751

In the Linux kernel, the following vulnerability has been resolved: PCI: kirin: Fix buffer overflow in kirin_pcie_parse_port() Within kirin_pcie_parse_port(), the pcie->num_slots is compared to pcie->gpio_id_reset size (MAX_PCI_SLOTS) which is correct and would lead to an overflow. Thus, fix condition to pcie->num_slots + 1 >= MAX_PCI_SLOTS and move pcie->num_slots increment below the if-statement to avoid out-of-bounds array access. Found by Linux Verification Center (linuxtesting.org) with SVACE. [kwilczynski: commit log]

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/6dcc5b49d6607a741a14122bf3105f3ac50d259e	Patch
https://git.kernel.org/stable/c/95248d7497bcbfe7deed4805469c6ff6ddd7f9d1	Patch
https://git.kernel.org/stable/c/a5f795f9412854df28e66679c5e6b68b0b79c229	Patch
https://git.kernel.org/stable/c/aeb0335971806e15ac91e838ca471936c8e7efd5	Patch
https://git.kernel.org/stable/c/c500a86693a126c9393e602741e348f80f1b0fc5	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

23 Oct 2024, 17:33

Type	Values Removed	Values Added
First Time		Linux linux Kernel Linux
CPE		cpe:2.3:o:linux:linux_kernel::::::::
References	~~() https://git.kernel.org/stable/c/6dcc5b49d6607a741a14122bf3105f3ac50d259e -~~	() https://git.kernel.org/stable/c/6dcc5b49d6607a741a14122bf3105f3ac50d259e - Patch
References	~~() https://git.kernel.org/stable/c/95248d7497bcbfe7deed4805469c6ff6ddd7f9d1 -~~	() https://git.kernel.org/stable/c/95248d7497bcbfe7deed4805469c6ff6ddd7f9d1 - Patch
References	~~() https://git.kernel.org/stable/c/a5f795f9412854df28e66679c5e6b68b0b79c229 -~~	() https://git.kernel.org/stable/c/a5f795f9412854df28e66679c5e6b68b0b79c229 - Patch
References	~~() https://git.kernel.org/stable/c/aeb0335971806e15ac91e838ca471936c8e7efd5 -~~	() https://git.kernel.org/stable/c/aeb0335971806e15ac91e838ca471936c8e7efd5 - Patch
References	~~() https://git.kernel.org/stable/c/c500a86693a126c9393e602741e348f80f1b0fc5 -~~	() https://git.kernel.org/stable/c/c500a86693a126c9393e602741e348f80f1b0fc5 - Patch
Summary		(es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: PCI: kirin: Se ha corregido el desbordamiento de búfer en kirin_pcie_parse_port(). En kirin_pcie_parse_port(), el tamaño de pcie->num_slots se compara con el tamaño de pcie->gpio_id_reset (MAX_PCI_SLOTS), que es correcto y provocaría un desbordamiento. Por lo tanto, se ha corregido la condición a pcie->num_slots + 1 >= MAX_PCI_SLOTS y se ha movido el incremento de pcie->num_slots por debajo de la instrucción if para evitar el acceso a la matriz fuera de los límites. Encontrado por Linux Verification Center (linuxtesting.org) con SVACE. [kwilczynski: registro de confirmaciones]
CWE		CWE-120
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.8

21 Oct 2024, 13:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-10-21 13:15

Updated : 2024-10-23 17:33

NVD link : CVE-2024-47751

Mitre link : CVE-2024-47751

CVE.ORG link : CVE-2024-47751

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

7.8 /10