CVE-2021-47474
comedi: vmk80xx: fix bulk-buffer overflow
Description
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.
INFO
Published Date :
May 22, 2024, 9:15 a.m.
Last Modified :
Sept. 24, 2025, 6:51 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the affected packages.
- Reboot the system if required.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47474.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47474 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47474
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47474 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47474 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Sep. 24, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-787 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.255 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.290 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.217 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.159 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.14.18 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.15 up to (excluding) 5.15.2 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.31 up to (excluding) 4.4.292 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.79 Added Reference Type CVE: https://git.kernel.org/stable/c/063f576c43d589a4c153554b681d32b3f8317c7b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/063f576c43d589a4c153554b681d32b3f8317c7b Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/78cdfd62bd54af615fba9e3ca1ba35de39d3871d Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/78cdfd62bd54af615fba9e3ca1ba35de39d3871d Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/7b0e356189327287d0eb98ec081bd6dd97068cd3 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7b0e356189327287d0eb98ec081bd6dd97068cd3 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/7cfb35db607760698d299fd1cf7402dfa8f09973 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7cfb35db607760698d299fd1cf7402dfa8f09973 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/b7fd7f3387f070215e6be341e68eb5c087eeecc0 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/b7fd7f3387f070215e6be341e68eb5c087eeecc0 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/e0e6a63fd97ad95fe05dfd77268a1952551e11a7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e0e6a63fd97ad95fe05dfd77268a1952551e11a7 Types: Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/063f576c43d589a4c153554b681d32b3f8317c7b Added Reference https://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772 Added Reference https://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993 Added Reference https://git.kernel.org/stable/c/47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2 Added Reference https://git.kernel.org/stable/c/78cdfd62bd54af615fba9e3ca1ba35de39d3871d Added Reference https://git.kernel.org/stable/c/7b0e356189327287d0eb98ec081bd6dd97068cd3 Added Reference https://git.kernel.org/stable/c/7cfb35db607760698d299fd1cf7402dfa8f09973 Added Reference https://git.kernel.org/stable/c/b7fd7f3387f070215e6be341e68eb5c087eeecc0 Added Reference https://git.kernel.org/stable/c/e0e6a63fd97ad95fe05dfd77268a1952551e11a7 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 22, 2024
Action Type Old Value New Value Added Description 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. Added Reference kernel.org https://git.kernel.org/stable/c/e0e6a63fd97ad95fe05dfd77268a1952551e11a7 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/7cfb35db607760698d299fd1cf7402dfa8f09973 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/063f576c43d589a4c153554b681d32b3f8317c7b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/b7fd7f3387f070215e6be341e68eb5c087eeecc0 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/7b0e356189327287d0eb98ec081bd6dd97068cd3 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/78cdfd62bd54af615fba9e3ca1ba35de39d3871d [No types assigned]