fkie_cve-2021-47071
Vulnerability from fkie_nvd
Published
2024-03-01 22:15
Modified
2024-12-12 14:43
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
uio_hv_generic: Fix a memory leak in error handling paths
If 'vmbus_establish_gpadl()' fails, the (recv|send)_gpadl will not be
updated and 'hv_uio_cleanup()' in the error handling path will not be
able to free the corresponding buffer.
In such a case, we need to free the buffer explicitly.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 5.13 | |
| linux | linux_kernel | 5.13 |
{
"configurations": [
{
"nodes": [
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"matchCriteriaId": "6530C9FA-EEF8-4821-9186-47F7A1FA3C1A",
"versionEndExcluding": "5.4.122",
"versionStartIncluding": "4.20",
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nuio_hv_generic: Fix a memory leak in error handling paths\n\nIf \u0027vmbus_establish_gpadl()\u0027 fails, the (recv|send)_gpadl will not be\nupdated and \u0027hv_uio_cleanup()\u0027 in the error handling path will not be\nable to free the corresponding buffer.\n\nIn such a case, we need to free the buffer explicitly."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: uio_hv_generic: corrige una p\u00e9rdida de memoria en las rutas de manejo de errores. Si falla \u0027vmbus_establecer_gpadl()\u0027, (recv|send)_gpadl no se actualizar\u00e1 y aparecer\u00e1 \u0027hv_uio_cleanup()\u0027 en el error La ruta de manejo no podr\u00e1 liberar el b\u00fafer correspondiente. En tal caso, necesitamos liberar el b\u00fafer expl\u00edcitamente."
}
],
"id": "CVE-2021-47071",
"lastModified": "2024-12-12T14:43:19.253",
"metrics": {
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"attackVector": "LOCAL",
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"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,
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"source": "nvd@nist.gov",
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"published": "2024-03-01T22:15:46.967",
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"value": "CWE-401"
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],
"source": "nvd@nist.gov",
"type": "Primary"
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]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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