CVE-2024-49997

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  2. Vulnerabilities (CVE)
  3. CVE-2024-49997

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

I

n the Linux kernel, the following vulnerability has been resolved: net: ethernet: lantiq_etop: fix memory disclosure When applying padding, the buffer is not zeroed, which results in memory disclosure. The mentioned data is observed on the wire. This patch uses skb_put_padto() to pad Ethernet frames properly. The mentioned function zeroes the expanded buffer. In case the packet cannot be padded it is silently dropped. Statistics are also not incremented. This driver does not support statistics in the old 32-bit format or the new 64-bit format. These will be added in the future. In its current form, the patch should be easily backported to stable versions. Ethernet MACs on Amazon-SE and Danube cannot do padding of the packets in hardware, so software padding must be applied.

References
Link Resource
https://git.kernel.org/stable/c/1097bf16501ed5e35358d848b0a94ad2830b0f65 Patch
https://git.kernel.org/stable/c/185df159843d30fb71f821e7ea4368c2a3bfcd36 Patch
https://git.kernel.org/stable/c/2bf4c101d7c99483b8b15a0c8f881e3f399f7e18 Patch
https://git.kernel.org/stable/c/431b122933b197820d319eb3987a67d04346ce9e Patch
https://git.kernel.org/stable/c/45c0de18ff2dc9af01236380404bbd6a46502c69 Patch
https://git.kernel.org/stable/c/469856f76f4802c5d7e3d20e343185188de1e2db Patch
https://git.kernel.org/stable/c/60c068444c20bf9a3e22b65b5f6f3d9edc852931
https://git.kernel.org/stable/c/905f06a34f960676e7dc77bea00f2f8fe18177ad
https://git.kernel.org/stable/c/e66e38d07b31e177ca430758ed97fbc79f27d966 Patch
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*
History

03 Nov 2025, 23:16

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html -

08 Nov 2024, 16:15

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/60c068444c20bf9a3e22b65b5f6f3d9edc852931 -
  • () https://git.kernel.org/stable/c/905f06a34f960676e7dc77bea00f2f8fe18177ad -

29 Oct 2024, 16:20

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/1097bf16501ed5e35358d848b0a94ad2830b0f65 - () https://git.kernel.org/stable/c/1097bf16501ed5e35358d848b0a94ad2830b0f65 - Patch
References () https://git.kernel.org/stable/c/185df159843d30fb71f821e7ea4368c2a3bfcd36 - () https://git.kernel.org/stable/c/185df159843d30fb71f821e7ea4368c2a3bfcd36 - Patch
References () https://git.kernel.org/stable/c/2bf4c101d7c99483b8b15a0c8f881e3f399f7e18 - () https://git.kernel.org/stable/c/2bf4c101d7c99483b8b15a0c8f881e3f399f7e18 - Patch
References () https://git.kernel.org/stable/c/431b122933b197820d319eb3987a67d04346ce9e - () https://git.kernel.org/stable/c/431b122933b197820d319eb3987a67d04346ce9e - Patch
References () https://git.kernel.org/stable/c/45c0de18ff2dc9af01236380404bbd6a46502c69 - () https://git.kernel.org/stable/c/45c0de18ff2dc9af01236380404bbd6a46502c69 - Patch
References () https://git.kernel.org/stable/c/469856f76f4802c5d7e3d20e343185188de1e2db - () https://git.kernel.org/stable/c/469856f76f4802c5d7e3d20e343185188de1e2db - Patch
References () https://git.kernel.org/stable/c/e66e38d07b31e177ca430758ed97fbc79f27d966 - () https://git.kernel.org/stable/c/e66e38d07b31e177ca430758ed97fbc79f27d966 - Patch
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.5
CPE cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-212
First Time Linux
Linux linux Kernel

23 Oct 2024, 15:13

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: ethernet: lantiq_etop: fix memory breach Al aplicar relleno, el búfer no se pone a cero, lo que da como resultado la divulgación de memoria. Los datos mencionados se observan en el cable. Este parche usa skb_put_padto() para rellenar los marcos Ethernet correctamente. La función mencionada pone a cero el búfer expandido. En caso de que el paquete no se pueda rellenar, se descarta silenciosamente. Las estadísticas tampoco se incrementan. Este controlador no admite estadísticas en el antiguo formato de 32 bits ni en el nuevo formato de 64 bits. Estos se agregarán en el futuro. En su forma actual, el parche debería poder retroportarse fácilmente a versiones estables. Las MAC de Ethernet en Amazon-SE y Danube no pueden realizar relleno de los paquetes en hardware, por lo que se debe aplicar relleno de software.

21 Oct 2024, 18:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-10-21 18:15

Updated : 2025-11-03 23:16

NVD link : CVE-2024-49997

Mitre link : CVE-2024-49997

CVE.ORG link : CVE-2024-49997

JSON object : View

Products Affected

linux

CWE
CWE-212

Improper Removal of Sensitive Information Before Storage or Transfer