Vulnerability-Lookup

GHSA-4V89-Q9H7-P6VX

Vulnerability from github – Published: 2024-05-22 09:31 – Updated: 2025-09-24 21:30

Details

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.

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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  "modified": "2025-09-24T21:30:30Z",
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CVE-2021-47474 (GCVE-0-2021-47474)

Vulnerability from cvelistv5 – Published: 2024-05-22 08:19 – Updated: 2026-05-11 13:55

Title

comedi: vmk80xx: fix bulk-buffer overflow

Summary

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.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-10 18:55 UTC

Assigner

Linux mitre root

References

9 references

URL	Tags
https://git.kernel.org/stable/c/e0e6a63fd97ad95fe…
https://git.kernel.org/stable/c/7cfb35db607760698…
https://git.kernel.org/stable/c/0866dcaa828c21bc2…
https://git.kernel.org/stable/c/063f576c43d589a4c…
https://git.kernel.org/stable/c/1ae4715121a57bc6f…
https://git.kernel.org/stable/c/b7fd7f3387f070215…
https://git.kernel.org/stable/c/7b0e356189327287d…
https://git.kernel.org/stable/c/47b4636ebdbeba204…
https://git.kernel.org/stable/c/78cdfd62bd54af615…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < e0e6a63fd97ad95fe05dfd77268a1952551e11a7 (git) Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < 7cfb35db607760698d299fd1cf7402dfa8f09973 (git) Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < 0866dcaa828c21bc2f94dac00e086078f11b5772 (git) Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < 063f576c43d589a4c153554b681d32b3f8317c7b (git) Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < 1ae4715121a57bc6fa29fd992127b01907f2f993 (git) Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < b7fd7f3387f070215e6be341e68eb5c087eeecc0 (git) Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < 7b0e356189327287d0eb98ec081bd6dd97068cd3 (git) Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < 47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2 (git) Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < 78cdfd62bd54af615fba9e3ca1ba35de39d3871d (git)
Linux	Linux	Affected: 2.6.31 Unaffected: 0 , < 2.6.31 (semver) Unaffected: 4.4.292 , ≤ 4.4.* (semver) Unaffected: 4.9.290 , ≤ 4.9.* (semver) Unaffected: 4.14.255 , ≤ 4.14.* (semver) Unaffected: 4.19.217 , ≤ 4.19.* (semver) Unaffected: 5.4.159 , ≤ 5.4.* (semver) Unaffected: 5.10.79 , ≤ 5.10.* (semver) Unaffected: 5.14.18 , ≤ 5.14.* (semver) Unaffected: 5.15.2 , ≤ 5.15.* (semver) Unaffected: 5.16 , ≤ * (original_commit_for_fix)

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-4V89-Q9H7-P6VX

CVE-2021-47474 (GCVE-0-2021-47474)

Tags

Sightings

Nomenclature

Related by attack behaviour