CVE-2021-47485

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47485
In the Linux kernel, the following vulnerability has been resolved: IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields Overflowing either addrlimit or bytes_togo can allow userspace to trigger a buffer overflow of kernel memory. Check for overflows in all the places doing math on user controlled buffers.

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/0d4395477741608d123dad51def9fe50b7ebe952 Patch
https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724 Patch
https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad Patch
https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d Patch
https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42 Patch
https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0 Patch
https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780 Patch
https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be Patch
https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952 Patch
https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724 Patch
https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad Patch
https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d Patch
https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42 Patch
https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0 Patch
https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780 Patch
https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be 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:*:*:*:*:*:*:*:*
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:5.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc7:*:*:*:*:*:*
History

06 Jan 2025, 19:53

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952 - () https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952 - Patch
References () https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724 - () https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724 - Patch
References () https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad - () https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad - Patch
References () https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d - () https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d - Patch
References () https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42 - () https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42 - Patch
References () https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0 - () https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0 - Patch
References () https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780 - () https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780 - Patch
References () https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be - () https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be - Patch
CWE CWE-120
CPE cpe:2.3:o:linux:linux_kernel:5.15:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*
First Time Linux linux Kernel
Linux
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8

21 Nov 2024, 06:36

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952 - () https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952 -
References () https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724 - () https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724 -
References () https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad - () https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad -
References () https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d - () https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d -
References () https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42 - () https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42 -
References () https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0 - () https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0 -
References () https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780 - () https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780 -
References () https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be - () https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be -
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: IB/qib: Protege contra el desbordamiento del búfer en los campos de struct qib_user_sdma_pkt. El desbordamiento de addrlimit o bytes_togo puede permitir que el espacio de usuario desencadene un desbordamiento del búfer de la memoria del kernel. Compruebe si hay desbordamientos en todos los lugares que realizan cálculos en búferes controlados por el usuario.

22 May 2024, 09:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-22 09:15

Updated : 2025-01-06 19:53

NVD link : CVE-2021-47485

Mitre link : CVE-2021-47485

CVE.ORG link : CVE-2021-47485

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-120

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