FKIE_CVE-2023-52494
Vulnerability from fkie_nvd - Published: 2024-03-11 18:15 - Updated: 2025-02-14 16:41
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bus: mhi: host: Add alignment check for event ring read pointer
Though we do check the event ring read pointer by "is_valid_ring_ptr"
to make sure it is in the buffer range, but there is another risk the
pointer may be not aligned. Since we are expecting event ring elements
are 128 bits(struct mhi_ring_element) aligned, an unaligned read pointer
could lead to multiple issues like DoS or ring buffer memory corruption.
So add a alignment check for event ring read pointer.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "35E631A3-4D05-4FC9-8CF5-E3E21448663F",
"versionEndExcluding": "5.15.149",
"versionStartIncluding": "5.13",
"vulnerable": true
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbus: mhi: host: Add alignment check for event ring read pointer\n\nThough we do check the event ring read pointer by \"is_valid_ring_ptr\"\nto make sure it is in the buffer range, but there is another risk the\npointer may be not aligned. Since we are expecting event ring elements\nare 128 bits(struct mhi_ring_element) aligned, an unaligned read pointer\ncould lead to multiple issues like DoS or ring buffer memory corruption.\n\nSo add a alignment check for event ring read pointer."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bus: mhi: host: agregar verificaci\u00f3n de alineaci\u00f3n para el puntero de lectura del anillo de eventos. Aunque verificamos el puntero de lectura del anillo de eventos mediante \"is_valid_ring_ptr\" para asegurarnos de que est\u00e9 en el rango del b\u00fafer, pero existe otro riesgo de que el puntero no est\u00e9 alineado. Dado que esperamos que los elementos del anillo de eventos est\u00e9n alineados con 128 bits (struct mhi_ring_element), un puntero de lectura no alineado podr\u00eda provocar m\u00faltiples problemas como DoS o corrupci\u00f3n de la memoria del b\u00fafer del anillo. Por lo tanto, agregue una verificaci\u00f3n de alineaci\u00f3n para el puntero de lectura del anillo de eventos."
}
],
"id": "CVE-2023-52494",
"lastModified": "2025-02-14T16:41:13.837",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
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},
"published": "2024-03-11T18:15:17.000",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
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"value": "CWE-787"
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],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
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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