CVE-2021-47404 (GCVE-0-2021-47404)
Vulnerability from cvelistv5 – Published: 2024-05-21 15:03 – Updated: 2026-05-11 13:54
VLAI
EPSS
VEX
Title
HID: betop: fix slab-out-of-bounds Write in betop_probe
Summary
In the Linux kernel, the following vulnerability has been resolved:
HID: betop: fix slab-out-of-bounds Write in betop_probe
Syzbot reported slab-out-of-bounds Write bug in hid-betopff driver.
The problem is the driver assumes the device must have an input report but
some malicious devices violate this assumption.
So this patch checks hid_device's input is non empty before it's been used.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-11 17:40 UTC
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 , < a4faa7153b87fbcfe4be15f4278676f79ca6e019
(git)
Affected: 52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 , < 6fc4476dda58f6c00097c7ddec3b772513f57525 (git) Affected: 52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 , < 1c83c38dec83d57bc18d0c01d82c413d3b34ccb9 (git) Affected: 52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 , < bb8b72374db69afa25a5b65cf1c092860c6fe914 (git) Affected: 52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 , < fe9bb925e7096509711660d39c0493a1546e9550 (git) Affected: 52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 , < dedfc35a2de2bae9fa3da8210a05bfd515f83fee (git) Affected: 52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 , < 708107b80aa616976d1c5fa60ac0c1390749db5e (git) Affected: 52cd7785f3cdd2724f4efb5b21dbc75d6f9ccef4 , < 1e4ce418b1cb1a810256b5fb3fd33d22d1325993 (git) |
guessed | |
| Linux | Linux |
Affected:
4.0
Unaffected: 0 , < 4.0 (semver) Unaffected: 4.4.286 , ≤ 4.4.* (semver) Unaffected: 4.9.285 , ≤ 4.9.* (semver) Unaffected: 4.14.249 , ≤ 4.14.* (semver) Unaffected: 4.19.209 , ≤ 4.19.* (semver) Unaffected: 5.4.151 , ≤ 5.4.* (semver) Unaffected: 5.10.71 , ≤ 5.10.* (semver) Unaffected: 5.14.10 , ≤ 5.14.* (semver) Unaffected: 5.15 , ≤ * (original_commit_for_fix) |
guessed |
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"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2025-11-21T14:11:17+00:00",
"cve": "CVE-2021-47404",
"id": "CVE-2021-47404",
"initial_release_date": "2021-01-01T00:00:00+00:00",
"product_status:known_affected": "156",
"product_status:known_not_affected": "42",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: HID: betop: fix slab-out-of-bounds Write in betop_probe",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47404.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-11T02:38:41Z",
"cve": "CVE-2021-47404",
"id": "CVE-2021-47404",
"initial_release_date": "2024-05-28T03:34:12Z",
"product_status:known_affected": "269",
"product_status:known_not_affected": "166",
"product_status:recommended": "685",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2021-47404",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-47404.json",
"version": "59"
},
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"dataType": "CVE_RECORD",
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}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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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.
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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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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