CVE-2021-47474

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47474
In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix bulk-buffer overflow The driver is using endpoint-sized buffers but must not assume that the tx and rx buffers are of equal size or a malicious device could overflow the slab-allocated receive buffer when doing bulk transfers.

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/063f576c43d589a4c153554b681d32b3f8317c7b Patch
https://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772 Patch
https://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993 Patch
https://git.kernel.org/stable/c/47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2 Patch
https://git.kernel.org/stable/c/78cdfd62bd54af615fba9e3ca1ba35de39d3871d Patch
https://git.kernel.org/stable/c/7b0e356189327287d0eb98ec081bd6dd97068cd3 Patch
https://git.kernel.org/stable/c/7cfb35db607760698d299fd1cf7402dfa8f09973 Patch
https://git.kernel.org/stable/c/b7fd7f3387f070215e6be341e68eb5c087eeecc0 Patch
https://git.kernel.org/stable/c/e0e6a63fd97ad95fe05dfd77268a1952551e11a7 Patch
https://git.kernel.org/stable/c/063f576c43d589a4c153554b681d32b3f8317c7b Patch
https://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772 Patch
https://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993 Patch
https://git.kernel.org/stable/c/47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2 Patch
https://git.kernel.org/stable/c/78cdfd62bd54af615fba9e3ca1ba35de39d3871d Patch
https://git.kernel.org/stable/c/7b0e356189327287d0eb98ec081bd6dd97068cd3 Patch
https://git.kernel.org/stable/c/7cfb35db607760698d299fd1cf7402dfa8f09973 Patch
https://git.kernel.org/stable/c/b7fd7f3387f070215e6be341e68eb5c087eeecc0 Patch
https://git.kernel.org/stable/c/e0e6a63fd97ad95fe05dfd77268a1952551e11a7 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:*:*:*:*:*:*:*:*
History

24 Sep 2025, 18:51

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/063f576c43d589a4c153554b681d32b3f8317c7b - () https://git.kernel.org/stable/c/063f576c43d589a4c153554b681d32b3f8317c7b - Patch
References () https://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772 - () https://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772 - Patch
References () https://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993 - () https://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993 - Patch
References () https://git.kernel.org/stable/c/47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2 - () https://git.kernel.org/stable/c/47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2 - Patch
References () https://git.kernel.org/stable/c/78cdfd62bd54af615fba9e3ca1ba35de39d3871d - () https://git.kernel.org/stable/c/78cdfd62bd54af615fba9e3ca1ba35de39d3871d - Patch
References () https://git.kernel.org/stable/c/7b0e356189327287d0eb98ec081bd6dd97068cd3 - () https://git.kernel.org/stable/c/7b0e356189327287d0eb98ec081bd6dd97068cd3 - Patch
References () https://git.kernel.org/stable/c/7cfb35db607760698d299fd1cf7402dfa8f09973 - () https://git.kernel.org/stable/c/7cfb35db607760698d299fd1cf7402dfa8f09973 - Patch
References () https://git.kernel.org/stable/c/b7fd7f3387f070215e6be341e68eb5c087eeecc0 - () https://git.kernel.org/stable/c/b7fd7f3387f070215e6be341e68eb5c087eeecc0 - Patch
References () https://git.kernel.org/stable/c/e0e6a63fd97ad95fe05dfd77268a1952551e11a7 - () https://git.kernel.org/stable/c/e0e6a63fd97ad95fe05dfd77268a1952551e11a7 - Patch
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
CWE CWE-787
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux
Linux linux Kernel

21 Nov 2024, 06:36

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/063f576c43d589a4c153554b681d32b3f8317c7b - () https://git.kernel.org/stable/c/063f576c43d589a4c153554b681d32b3f8317c7b -
References () https://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772 - () https://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772 -
References () https://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993 - () https://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993 -
References () https://git.kernel.org/stable/c/47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2 - () https://git.kernel.org/stable/c/47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2 -
References () https://git.kernel.org/stable/c/78cdfd62bd54af615fba9e3ca1ba35de39d3871d - () https://git.kernel.org/stable/c/78cdfd62bd54af615fba9e3ca1ba35de39d3871d -
References () https://git.kernel.org/stable/c/7b0e356189327287d0eb98ec081bd6dd97068cd3 - () https://git.kernel.org/stable/c/7b0e356189327287d0eb98ec081bd6dd97068cd3 -
References () https://git.kernel.org/stable/c/7cfb35db607760698d299fd1cf7402dfa8f09973 - () https://git.kernel.org/stable/c/7cfb35db607760698d299fd1cf7402dfa8f09973 -
References () https://git.kernel.org/stable/c/b7fd7f3387f070215e6be341e68eb5c087eeecc0 - () https://git.kernel.org/stable/c/b7fd7f3387f070215e6be341e68eb5c087eeecc0 -
References () https://git.kernel.org/stable/c/e0e6a63fd97ad95fe05dfd77268a1952551e11a7 - () https://git.kernel.org/stable/c/e0e6a63fd97ad95fe05dfd77268a1952551e11a7 -
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: comedi: vmk80xx: corrige el desbordamiento masivo del búfer El controlador utiliza búferes del tamaño de un endpoint, pero no debe asumir que los búferes tx y rx son del mismo tamaño o un dispositivo malicioso podría desbordar el búfer de recepción asignado por losa al realizar transferencias masivas.

22 May 2024, 09:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-22 09:15

Updated : 2025-09-24 18:51

NVD link : CVE-2021-47474

Mitre link : CVE-2021-47474

CVE.ORG link : CVE-2021-47474

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-787

Out-of-bounds Write