CVE-2021-46965

mtd: physmap: physmap-bt1-rom: Fix unintentional stack access

Severity Score

9.1

*CVSS v3

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: mtd: physmap: physmap-bt1-rom: Fix unintentional stack access Cast &data to (char *) in order to avoid unintentionally accessing
the stack. Notice that data is of type u32, so any increment to &data
will be in the order of 4-byte chunks, and this piece of code
is actually intended to be a byte offset. Addresses-Coverity-ID: 1497765 ("Out-of-bounds access")

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mtd: physmap: physmap-bt1-rom: corrige el acceso involuntario a la pila. Transmite &data a (char *) para evitar el acceso involuntario a la pila. Tenga en cuenta que los datos son de tipo u32, por lo que cualquier incremento en &data será del orden de fragmentos de 4 bytes, y este fragmento de código en realidad está destinado a ser un desplazamiento de bytes. Direcciones-Coverity-ID: 1497765 ("Acceso fuera de límites")

In the Linux kernel, the following vulnerability has been resolved: mtd: physmap: physmap-bt1-rom: Fix unintentional stack access Cast &data to (char *) in order to avoid unintentionally accessing the stack. Notice that data is of type u32, so any increment to &data will be in the order of 4-byte chunks, and this piece of code is actually intended to be a byte offset. Addresses-Coverity-ID: 1497765 ("Out-of-bounds access")

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-02-27 CVE Reserved
2024-02-27 CVE Published
2024-12-19 CVE Updated
2025-01-09 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (5)

URL	Tag	Source
https://git.kernel.org/stable/c/b3e79e7682e075326df8041b826b03453acacd0a	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/34ec706bf0b7c4ca249a729c1bcb91f706c7a7be	2021-05-11
https://git.kernel.org/stable/c/4e4ebb827bf09311469ffd9d0c14ed40ed9747aa	2021-05-12
https://git.kernel.org/stable/c/4d786870e3262ec098a3b4ed10b895176bc66ecb	2021-05-12
https://git.kernel.org/stable/c/683313993dbe1651c7aa00bb42a041d70e914925	2021-03-11

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"				>= 5.10 < 5.10.36 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 5.10.36"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.10 < 5.11.20 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 5.11.20"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.10 < 5.12.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 5.12.3"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.10 < 5.13 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 5.13"		en		Affected