CVE-2021-47048

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47048
In the Linux kernel, the following vulnerability has been resolved: spi: spi-zynqmp-gqspi: fix use-after-free in zynqmp_qspi_exec_op When handling op->addr, it is using the buffer "tmpbuf" which has been freed. This will trigger a use-after-free KASAN warning. Let's use temporary variables to store op->addr.val and op->cmd.opcode to fix this issue.

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/1231279389b5e638bc3b66b9741c94077aed4b5a Patch
https://git.kernel.org/stable/c/23269ac9f123eca3aea7682d3345c02e71ed696c Patch
https://git.kernel.org/stable/c/a2c5bedb2d55dd27c642c7b9fb6886d7ad7bdb58 Patch
https://git.kernel.org/stable/c/d67e0d6bd92ebbb0294e7062bbf5cdc773764e62 Patch
https://git.kernel.org/stable/c/1231279389b5e638bc3b66b9741c94077aed4b5a Patch
https://git.kernel.org/stable/c/23269ac9f123eca3aea7682d3345c02e71ed696c Patch
https://git.kernel.org/stable/c/a2c5bedb2d55dd27c642c7b9fb6886d7ad7bdb58 Patch
https://git.kernel.org/stable/c/d67e0d6bd92ebbb0294e7062bbf5cdc773764e62 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:*:*:*:*:*:*:*:*
History

09 Dec 2024, 19:05

Type Values Removed Values Added
CWE CWE-416
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux linux Kernel
Linux
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
References () https://git.kernel.org/stable/c/1231279389b5e638bc3b66b9741c94077aed4b5a - () https://git.kernel.org/stable/c/1231279389b5e638bc3b66b9741c94077aed4b5a - Patch
References () https://git.kernel.org/stable/c/23269ac9f123eca3aea7682d3345c02e71ed696c - () https://git.kernel.org/stable/c/23269ac9f123eca3aea7682d3345c02e71ed696c - Patch
References () https://git.kernel.org/stable/c/a2c5bedb2d55dd27c642c7b9fb6886d7ad7bdb58 - () https://git.kernel.org/stable/c/a2c5bedb2d55dd27c642c7b9fb6886d7ad7bdb58 - Patch
References () https://git.kernel.org/stable/c/d67e0d6bd92ebbb0294e7062bbf5cdc773764e62 - () https://git.kernel.org/stable/c/d67e0d6bd92ebbb0294e7062bbf5cdc773764e62 - Patch

21 Nov 2024, 06:35

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/1231279389b5e638bc3b66b9741c94077aed4b5a - () https://git.kernel.org/stable/c/1231279389b5e638bc3b66b9741c94077aed4b5a -
References () https://git.kernel.org/stable/c/23269ac9f123eca3aea7682d3345c02e71ed696c - () https://git.kernel.org/stable/c/23269ac9f123eca3aea7682d3345c02e71ed696c -
References () https://git.kernel.org/stable/c/a2c5bedb2d55dd27c642c7b9fb6886d7ad7bdb58 - () https://git.kernel.org/stable/c/a2c5bedb2d55dd27c642c7b9fb6886d7ad7bdb58 -
References () https://git.kernel.org/stable/c/d67e0d6bd92ebbb0294e7062bbf5cdc773764e62 - () https://git.kernel.org/stable/c/d67e0d6bd92ebbb0294e7062bbf5cdc773764e62 -
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: spi: spi-zynqmp-gqspi: corrige use-after-free en zynqmp_qspi_exec_op Al manejar op->addr, se utiliza el buffer "tmpbuf" que ha sido liberado. Esto activará una advertencia de KASAN de use-after-free. Usemos variables temporales para almacenar op->addr.val y op->cmd.opcode para solucionar este problema.

28 Feb 2024, 09:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-02-28 09:15

Updated : 2024-12-09 19:05

NVD link : CVE-2021-47048

Mitre link : CVE-2021-47048

CVE.ORG link : CVE-2021-47048

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free