FKIE_CVE-2023-52615
Vulnerability from fkie_nvd - Published: 2024-03-18 11:15 - Updated: 2026-06-17 06:43
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
hwrng: core - Fix page fault dead lock on mmap-ed hwrng
There is a dead-lock in the hwrng device read path. This triggers
when the user reads from /dev/hwrng into memory also mmap-ed from
/dev/hwrng. The resulting page fault triggers a recursive read
which then dead-locks.
Fix this by using a stack buffer when calling copy_to_user.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/char/hw_random/core.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "eafd83b92f6c044007a3591cbd476bcf90455990",
"status": "affected",
"version": "9996508b3353063f2d6c48c1a28a84543d72d70b",
"versionType": "git"
},
{
"lessThan": "5030d4c798863ccb266563201b341a099e8cdd48",
"status": "affected",
"version": "9996508b3353063f2d6c48c1a28a84543d72d70b",
"versionType": "git"
},
{
"lessThan": "c6a8111aacbfe7a8a70f46cc0de8eed00561693c",
"status": "affected",
"version": "9996508b3353063f2d6c48c1a28a84543d72d70b",
"versionType": "git"
},
{
"lessThan": "26cc6d7006f922df6cc4389248032d955750b2a0",
"status": "affected",
"version": "9996508b3353063f2d6c48c1a28a84543d72d70b",
"versionType": "git"
},
{
"lessThan": "aa8aa16ed9adf1df05bb339d588cf485a011839e",
"status": "affected",
"version": "9996508b3353063f2d6c48c1a28a84543d72d70b",
"versionType": "git"
},
{
"lessThan": "ecabe8cd456d3bf81e92c53b074732f3140f170d",
"status": "affected",
"version": "9996508b3353063f2d6c48c1a28a84543d72d70b",
"versionType": "git"
},
{
"lessThan": "6822a14271786150e178869f1495cc03e74c5029",
"status": "affected",
"version": "9996508b3353063f2d6c48c1a28a84543d72d70b",
"versionType": "git"
},
{
"lessThan": "78aafb3884f6bc6636efcc1760c891c8500b9922",
"status": "affected",
"version": "9996508b3353063f2d6c48c1a28a84543d72d70b",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/char/hw_random/core.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.33"
},
{
"lessThan": "2.6.33",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.307",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.269",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.210",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.149",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.76",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.15",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"version": "6.7.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.8",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "4056E875-7F66-4635-9AD0-73A5D5FF355C",
"versionEndExcluding": "4.19.307",
"versionStartIncluding": "2.6.33",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "319545F3-D56C-4751-BEBF-0505478BBAE8",
"versionEndExcluding": "5.4.269",
"versionStartIncluding": "4.20",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F5CB4CA6-A9A0-4AFD-9102-8CF94D708170",
"versionEndExcluding": "5.10.210",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0D0465BB-4053-4E15-9137-6696EBAE90FD",
"versionEndExcluding": "5.15.149",
"versionStartIncluding": "5.11",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "32F0FEB3-5FE1-4400-A56D-886F09BE872E",
"versionEndExcluding": "6.1.76",
"versionStartIncluding": "5.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "87C718CB-AE3D-4B07-B4D9-BFF64183C468",
"versionEndExcluding": "6.6.15",
"versionStartIncluding": "6.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "58FD5308-148A-40D3-B36A-0CA6B434A8BF",
"versionEndExcluding": "6.7.3",
"versionStartIncluding": "6.7",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwrng: core - Fix page fault dead lock on mmap-ed hwrng\n\nThere is a dead-lock in the hwrng device read path. This triggers\nwhen the user reads from /dev/hwrng into memory also mmap-ed from\n/dev/hwrng. The resulting page fault triggers a recursive read\nwhich then dead-locks.\n\nFix this by using a stack buffer when calling copy_to_user."
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: hwrng: core: soluciona el bloqueo de falla de p\u00e1gina en mmap-ed hwrng Hay un bloqueo en la ruta de lectura del dispositivo hwrng. Esto se activa cuando el usuario lee desde /dev/hwrng en la memoria y tambi\u00e9n realiza mmap-ed desde /dev/hwrng. El error de p\u00e1gina resultante desencadena una lectura recursiva que luego se bloquea. Solucione este problema utilizando un b\u00fafer de pila al llamar a copy_to_user."
}
],
"id": "CVE-2023-52615",
"lastModified": "2026-06-17T06:43:10.067",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-52615",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T15:55:19.515526Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-03-18T11:15:08.797",
"references": [
{
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"tags": [
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],
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
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{
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"value": "CWE-667"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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.
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- 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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