2024-07-23 16:03:13 +00:00

103 lines
4.1 KiB
JSON

{
"id": "CVE-2022-48861",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-07-16T13:15:13.030",
"lastModified": "2024-07-23T14:51:36.307",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa: fix use-after-free on vp_vdpa_remove\n\nWhen vp_vdpa driver is unbind, vp_vdpa is freed in vdpa_unregister_device\nand then vp_vdpa->mdev.pci_dev is dereferenced in vp_modern_remove,\ntriggering use-after-free.\n\nCall Trace of unbinding driver free vp_vdpa :\ndo_syscall_64\n vfs_write\n kernfs_fop_write_iter\n device_release_driver_internal\n pci_device_remove\n vp_vdpa_remove\n vdpa_unregister_device\n kobject_release\n device_release\n kfree\n\nCall Trace of dereference vp_vdpa->mdev.pci_dev:\nvp_modern_remove\n pci_release_selected_regions\n pci_release_region\n pci_resource_len\n pci_resource_end\n (dev)->resource[(bar)].end"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: vdpa: corrige el use-after-free en vp_vdpa_remove Cuando el controlador vp_vdpa se desvincula, se libera vp_vdpa en vdpa_unregister_device y luego se elimina la referencia a vp_vdpa->mdev.pci_dev en vp_modern_remove, lo que activa el use-after-free. Rastreo de llamadas de controlador de desvinculaci\u00f3n gratuito vp_vdpa: do_syscall_64 vfs_write kernfs_fop_write_iter device_release_driver_internal pci_device_remove vp_vdpa_remove vdpa_unregister_device kobject_release device_release kfree Rastreo de llamadas de desreferencia vp_vdpa->mdev.pci_dev: vp_modern_remove p ci_release_selected_regions pci_release_region pci_resource_len pci_resource_end (dev)->resource[(bar)].end"
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.13",
"versionEndExcluding": "5.15.29",
"matchCriteriaId": "062C5263-014B-4069-BEBB-ADFE8EA1AF10"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.16",
"versionEndExcluding": "5.16.15",
"matchCriteriaId": "83FDEDF2-0E19-4879-91FD-171E66D1B335"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/4b1743bc715a3691a63ac21b349079b07bf1b19e",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/dc54ba9932aeaaa1a21fe214af1f446593a78274",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/eb057b44dbe35ae14527830236a92f51de8f9184",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
}
]
}