CVE-2021-3675 (GCVE-0-2021-3675)
Vulnerability from cvelistv5 – Published: 2022-06-16 16:15 – Updated: 2024-09-16 17:38
VLAI
EPSS
VEX
Title
synaTEE.signed.dll Out-Of-Bounds Heap Write
Summary
Improper Input Validation vulnerability in synaTEE.signed.dll of Synaptics Fingerprint Driver allows a local authorized attacker to overwrite a heap tag, with potential loss of confidentiality. This issue affects: Synaptics Synaptics Fingerprint Driver 5.1.xxx.26 versions prior to xxx=340 on x86/64; 5.2.xxxx.26 versions prior to xxxx=3541 on x86/64; 5.2.2xx.26 versions prior to xx=29 on x86/64; 5.2.3xx.26 versions prior to xx=25 on x86/64; 5.3.xxxx.26 versions prior to xxxx=3543 on x86/64; 5.5.xx.1058 versions prior to xx=44 on x86/64; 5.5.xx.1102 versions prior to xx=34 on x86/64; 5.5.xx.1116 versions prior to xx=14 on x86/64; 6.0.xx.1104 versions prior to xx=50 on x86/64; 6.0.xx.1108 versions prior to xx=31 on x86/64; 6.0.xx.1111 versions prior to xx=58 on x86/64.
Severity
5.5 (Medium)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://synaptics.com/sites/default/files/2022-06… | x_refsource_CONFIRM |
| https://support.lenovo.com/us/en/product_security… | x_refsource_MISC |
| https://support.hp.com/us-en/document/ish_6411153… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Synaptics | Synaptics Fingerprint Driver |
Affected:
5.1.xxx.26 , < xxx=340
(custom)
Affected: 5.2.xxxx.26 , < xxxx=3541 (custom) Affected: 5.2.2xx.26 , < xx=29 (custom) Affected: 5.2.3xx.26 , < xx=25 (custom) Affected: 5.3.xxxx.26 , < xxxx=3543 (custom) Affected: 5.5.xx.1058 , < xx=44 (custom) Affected: 5.5.xx.1102 , < xx=34 (custom) Affected: 5.5.xx.1116 , < xx=14 (custom) Affected: 6.0.xx.1104 , < xx=50 (custom) Affected: 6.0.xx.1108 , < xx=31 (custom) Affected: 6.0.xx.1111 , < xx=58 (custom) |
guessed |
Date Public
2022-06-14 00:00
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"cve": {
"affected": [
{
"affectedData": [
{
"platforms": [
"x86/64"
],
"product": "Synaptics Fingerprint Driver",
"vendor": "Synaptics",
"versions": [
{
"lessThan": "xxx=340",
"status": "affected",
"version": "5.1.xxx.26",
"versionType": "custom"
},
{
"lessThan": "xxxx=3541",
"status": "affected",
"version": "5.2.xxxx.26",
"versionType": "custom"
},
{
"lessThan": "xx=29",
"status": "affected",
"version": "5.2.2xx.26",
"versionType": "custom"
},
{
"lessThan": "xx=25",
"status": "affected",
"version": "5.2.3xx.26",
"versionType": "custom"
},
{
"lessThan": "xxxx=3543",
"status": "affected",
"version": "5.3.xxxx.26",
"versionType": "custom"
},
{
"lessThan": "xx=44",
"status": "affected",
"version": "5.5.xx.1058",
"versionType": "custom"
},
{
"lessThan": "xx=34",
"status": "affected",
"version": "5.5.xx.1102",
"versionType": "custom"
},
{
"lessThan": "xx=14",
"status": "affected",
"version": "5.5.xx.1116",
"versionType": "custom"
},
{
"lessThan": "xx=50",
"status": "affected",
"version": "6.0.xx.1104",
"versionType": "custom"
},
{
"lessThan": "xx=31",
"status": "affected",
"version": "6.0.xx.1108",
"versionType": "custom"
},
{
"lessThan": "xx=58",
"status": "affected",
"version": "6.0.xx.1111",
"versionType": "custom"
}
]
}
],
"source": "PSIRT@synaptics.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:synaptics:fingerprint_driver:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F38E1DD1-ECC6-43BC-A9B4-AB9132BB5E33",
"versionEndExcluding": "5.1.340.26",
"versionStartIncluding": "5.1.000.26",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:synaptics:fingerprint_driver:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F018DFB2-D2B8-40FD-B1BA-54B6796FC5DB",
"versionEndExcluding": "5.2.3541.26",
"versionStartIncluding": "5.2.0000.26",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:synaptics:fingerprint_driver:*:*:*:*:*:*:*:*",
"matchCriteriaId": "FB516B80-AE5A-4B4D-87D2-AC891FAE552C",
"versionEndExcluding": "5.2.229.26",
"versionStartIncluding": "5.2.200.26",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:synaptics:fingerprint_driver:*:*:*:*:*:*:*:*",
"matchCriteriaId": "4541B32F-5849-497B-8529-533115478160",
"versionEndExcluding": "5.2.325.26",
"versionStartIncluding": "5.2.300.26",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:synaptics:fingerprint_driver:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F7D42006-84C4-450E-B180-BFEC5D5C98E1",
"versionEndExcluding": "5.3.3543.26",
"versionStartIncluding": "5.3.0000.26",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:synaptics:fingerprint_driver:*:*:*:*:*:*:*:*",
"matchCriteriaId": "22618553-5C06-487F-9F2A-E881DA0FC6A6",
"versionEndExcluding": "5.5.44.1058",
"versionStartIncluding": "5.5.00.1058",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:synaptics:fingerprint_driver:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0FB65743-59BE-4580-AC83-E0239BCEB492",
"versionEndExcluding": "5.5.34.1102",
"versionStartIncluding": "5.5.00.1102",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:synaptics:fingerprint_driver:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A26003EA-72D4-40CC-AFA9-E9A9AFA35673",
"versionEndExcluding": "5.5.14.1116",
"versionStartIncluding": "5.5.00.1116",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:synaptics:fingerprint_driver:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A73E613F-C8BD-42EC-9797-34B4AD2EC280",
"versionEndExcluding": "6.0.58.1111",
"versionStartIncluding": "6.0.00.1111",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Improper Input Validation vulnerability in synaTEE.signed.dll of Synaptics Fingerprint Driver allows a local authorized attacker to overwrite a heap tag, with potential loss of confidentiality. This issue affects: Synaptics Synaptics Fingerprint Driver 5.1.xxx.26 versions prior to xxx=340 on x86/64; 5.2.xxxx.26 versions prior to xxxx=3541 on x86/64; 5.2.2xx.26 versions prior to xx=29 on x86/64; 5.2.3xx.26 versions prior to xx=25 on x86/64; 5.3.xxxx.26 versions prior to xxxx=3543 on x86/64; 5.5.xx.1058 versions prior to xx=44 on x86/64; 5.5.xx.1102 versions prior to xx=34 on x86/64; 5.5.xx.1116 versions prior to xx=14 on x86/64; 6.0.xx.1104 versions prior to xx=50 on x86/64; 6.0.xx.1108 versions prior to xx=31 on x86/64; 6.0.xx.1111 versions prior to xx=58 on x86/64."
},
{
"lang": "es",
"value": "Una vulnerabilidad de comprobaci\u00f3n de entrada inapropiada en el archivo synaTEE.signed.dll de Synaptics Fingerprint Driver, permite a un atacante local autorizado sobrescribir una etiqueta de la pila, con posible p\u00e9rdida de confidencialidad. Este problema afecta a: Synaptics Fingerprint Driver versiones: 5.1.xxx.26 versiones anteriores a xxx=340 en x86/64; 5.2.xxxx.26 versiones anteriores a xxxx=3541 en x86/64; 5.2.2xx.26 versiones anteriores a xx=29 en x86/64; 5.2.3xx.26 versiones anteriores a xx=25 en x86/64; 5.3.xxxx.26 versiones anteriores a xxxx=3543 en x86/64; 5.5.xx.1058 versiones anteriores a xx=44 en x86/64; 5.5.xx.1102 versiones anteriores a xx=34 en x86/64; 5.5.xx.1116 versiones anteriores a xx=14 en x86/64; 6.0.xx.1104 versiones anteriores a xx=50 en x86/64; 6.0.xx.1108 versiones anteriores a xx=31 en x86/64; 6.0.xx.1111 versiones anteriores a xx=58 en x86/64"
}
],
"id": "CVE-2021-3675",
"lastModified": "2026-06-17T04:05:32.950",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 3.6,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "PSIRT@synaptics.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.2,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2022-06-16T17:15:07.593",
"references": [
{
"source": "PSIRT@synaptics.com",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://support.hp.com/us-en/document/ish_6411153-6411191-16/hpsbhf03797"
},
{
"source": "PSIRT@synaptics.com",
"tags": [
"Third Party Advisory"
],
"url": "https://support.lenovo.com/us/en/product_security/LEN-68054"
},
{
"source": "PSIRT@synaptics.com",
"tags": [
"Vendor Advisory"
],
"url": "https://synaptics.com/sites/default/files/2022-06/fingerprint-driver-SGX-security-brief-2022-06-14.pdf"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://support.hp.com/us-en/document/ish_6411153-6411191-16/hpsbhf03797"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://support.lenovo.com/us/en/product_security/LEN-68054"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://synaptics.com/sites/default/files/2022-06/fingerprint-driver-SGX-security-brief-2022-06-14.pdf"
}
],
"sourceIdentifier": "PSIRT@synaptics.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "PSIRT@synaptics.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-03-27T13:48:24+00:00",
"cve": "CVE-2021-3675",
"id": "CVE-2021-3675",
"initial_release_date": "2021-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "synaTEE.signed.dll Out-Of-Bounds Heap Write",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-3675.json",
"version": "3"
}
}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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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.