fkie_cve-2024-49852
Vulnerability from fkie_nvd
Published
2024-10-21 13:15
Modified
2024-10-23 16:14
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del()
The kref_put() function will call nport->release if the refcount drops to
zero. The nport->release release function is _efc_nport_free() which frees
"nport". But then we dereference "nport" on the next line which is a use
after free. Re-order these lines to avoid the use after free.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
{
"configurations": [
{
"nodes": [
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"versionEndExcluding": "5.15.168",
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: elx: libefc: Fix potential use after free in efc_nport_vport_del()\n\nThe kref_put() function will call nport-\u003erelease if the refcount drops to\nzero. The nport-\u003erelease release function is _efc_nport_free() which frees\n\"nport\". But then we dereference \"nport\" on the next line which is a use\nafter free. Re-order these lines to avoid the use after free."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: elx: libefc: Se corrige el potencial use after freea nport-\u0026gt;release si el recuento de referencias cae a cero. La funci\u00f3n de liberaci\u00f3n nport-\u0026gt;release es _efc_nport_free() que libera \"nport\". Pero luego desreferenciamos \"nport\" en la siguiente l\u00ednea que es un use after free. Reordena estas l\u00edneas para evitar el use after free."
}
],
"id": "CVE-2024-49852",
"lastModified": "2024-10-23T16:14:01.857",
"metrics": {
"cvssMetricV31": [
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"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"
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"exploitabilityScore": 1.8,
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"source": "nvd@nist.gov",
"type": "Primary"
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"published": "2024-10-21T13:15:05.977",
"references": [
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"vulnStatus": "Analyzed",
"weaknesses": [
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"value": "CWE-416"
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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 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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