CVE-2024-27037

clk: zynq: Prevent null pointer dereference caused by kmalloc failure

Severity Score

5.5

*CVSS v3.1

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:

clk: zynq: Prevent null pointer dereference caused by kmalloc failure

The kmalloc() in zynq_clk_setup() will return null if the
physical memory has run out. As a result, if we use snprintf()
to write data to the null address, the null pointer dereference
bug will happen.

This patch uses a stack variable to replace the kmalloc().

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: clk: zynq: evita la desreferencia del puntero nulo causada por una falla de kmalloc. El kmalloc() en zynq_clk_setup() devolverá nulo si la memoria física se ha agotado. Como resultado, si usamos snprintf() para escribir datos en la dirección nula, se producirá el error de desreferencia del puntero nulo. Este parche utiliza una variable de pila para reemplazar kmalloc().

*Credits: N/A

CVSS Scores

CISAv3.1 5.5

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-02-19 CVE Reserved
2024-05-01 CVE Published
2024-05-02 EPSS Updated
2024-12-19 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (7)

URL	Tag	Source
https://git.kernel.org/stable/c/0ee52b157b8ed88550ddd6291e54bb4bfabde364	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/01511ac7be8e45f80e637f6bf61af2d3d2dee9db	2024-03-26
https://git.kernel.org/stable/c/8c4889a9ea861d7be37463c10846eb75e1b49c9d	2024-03-26
https://git.kernel.org/stable/c/0801c893fd48cdba66a3c8f44c3fe43cc67d3b85	2024-03-26
https://git.kernel.org/stable/c/ca976c6a592f789700200069ef9052493c0b73d8	2024-03-26
https://git.kernel.org/stable/c/58a946ab43501f2eba058d24d96af0ad1122475b	2024-03-26
https://git.kernel.org/stable/c/7938e9ce39d6779d2f85d822cc930f73420e54a6	2024-03-09

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"				>= 3.11 < 5.15.153 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.11 < 5.15.153"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.11 < 6.1.83 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.11 < 6.1.83"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.11 < 6.6.23 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.11 < 6.6.23"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.11 < 6.7.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.11 < 6.7.11"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.11 < 6.8.2 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.11 < 6.8.2"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.11 < 6.9 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.11 < 6.9"		en		Affected