mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
synced 2025-05-29 01:31:20 +00:00
89 lines
3.9 KiB
JSON
89 lines
3.9 KiB
JSON
{
|
|
"id": "CVE-2024-43840",
|
|
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"published": "2024-08-17T10:15:09.517",
|
|
"lastModified": "2024-10-29T16:25:29.913",
|
|
"vulnStatus": "Analyzed",
|
|
"cveTags": [],
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, arm64: Fix trampoline for BPF_TRAMP_F_CALL_ORIG\n\nWhen BPF_TRAMP_F_CALL_ORIG is set, the trampoline calls\n__bpf_tramp_enter() and __bpf_tramp_exit() functions, passing them\nthe struct bpf_tramp_image *im pointer as an argument in R0.\n\nThe trampoline generation code uses emit_addr_mov_i64() to emit\ninstructions for moving the bpf_tramp_image address into R0, but\nemit_addr_mov_i64() assumes the address to be in the vmalloc() space\nand uses only 48 bits. Because bpf_tramp_image is allocated using\nkzalloc(), its address can use more than 48-bits, in this case the\ntrampoline will pass an invalid address to __bpf_tramp_enter/exit()\ncausing a kernel crash.\n\nFix this by using emit_a64_mov_i64() in place of emit_addr_mov_i64()\nas it can work with addresses that are greater than 48-bits."
|
|
},
|
|
{
|
|
"lang": "es",
|
|
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf, arm64: Reparar trampol\u00edn para BPF_TRAMP_F_CALL_ORIG Cuando BPF_TRAMP_F_CALL_ORIG est\u00e1 configurado, el trampol\u00edn llama a las funciones __bpf_tramp_enter() y __bpf_tramp_exit(), pas\u00e1ndoles el puntero struct bpf_tramp_image *im como argumento en R0 . El c\u00f3digo de generaci\u00f3n de trampol\u00edn usa emit_addr_mov_i64() para emitir instrucciones para mover la direcci\u00f3n bpf_tramp_image a R0, pero emit_addr_mov_i64() asume que la direcci\u00f3n est\u00e1 en el espacio vmalloc() y usa solo 48 bits. Debido a que bpf_tramp_image se asigna usando kzalloc(), su direcci\u00f3n puede usar m\u00e1s de 48 bits, en este caso el trampol\u00edn pasar\u00e1 una direcci\u00f3n no v\u00e1lida a __bpf_tramp_enter/exit() provocando un bloqueo del kernel. Solucione este problema utilizando emit_a64_mov_i64() en lugar de emit_addr_mov_i64(), ya que puede funcionar con direcciones superiores a 48 bits."
|
|
}
|
|
],
|
|
"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",
|
|
"baseScore": 5.5,
|
|
"baseSeverity": "MEDIUM",
|
|
"attackVector": "LOCAL",
|
|
"attackComplexity": "LOW",
|
|
"privilegesRequired": "LOW",
|
|
"userInteraction": "NONE",
|
|
"scope": "UNCHANGED",
|
|
"confidentialityImpact": "NONE",
|
|
"integrityImpact": "NONE",
|
|
"availabilityImpact": "HIGH"
|
|
},
|
|
"exploitabilityScore": 1.8,
|
|
"impactScore": 3.6
|
|
}
|
|
]
|
|
},
|
|
"weaknesses": [
|
|
{
|
|
"source": "nvd@nist.gov",
|
|
"type": "Primary",
|
|
"description": [
|
|
{
|
|
"lang": "en",
|
|
"value": "NVD-CWE-noinfo"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"configurations": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.0",
|
|
"versionEndExcluding": "6.10.3",
|
|
"matchCriteriaId": "10A3C375-FFAF-4092-9FFF-0DE81E7DCE63"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/19d3c179a37730caf600a97fed3794feac2b197b",
|
|
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"tags": [
|
|
"Patch"
|
|
]
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/6d218fcc707d6b2c3616b6cd24b948fd4825cfec",
|
|
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"tags": [
|
|
"Patch"
|
|
]
|
|
}
|
|
]
|
|
} |