CVE-2022-49032
Estado: AnalizadaAlta (7.1)—
In the Linux kernel, the following vulnerability has been resolved:
iio: health: afe4404: Fix oob read in afe4404_[read|write]_raw
Call Trace: afe4404_read_raw iio_read_channel_info dev_attr_show
This issue can be reproduce by singe command:
$ cat /sys/bus/i2c/devices/0-0058/iio\:device0/in_intensity6_raw
The array size of afe4404_channel_leds and afe4404_channel_offdacs are less than channels, so access with chan->address cause OOB read in afe4404_[read|write]_raw. Fix it by moving access before use them.
Detalles técnicos trazas, registros y código del informe original
KASAN report out-of-bounds read as follows: BUG: KASAN: global-out-of-bounds in afe4404_read_raw+0x2ce/0x380 Read of size 4 at addr ffffffffc00e4658 by task cat/278 The buggy address belongs to the variable: afe4404_channel_leds+0x18/0xffffffffffffe9c0
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Puntuación base: 7.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.24%
- Percentil entre todas las CVEs puntuadas: 14
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1068Exploitation for Privilege Escalationprivilege escalation85 % - Impacto principal
T1005Data from Local Systemcollection75 %
Acceso local sin interacción (AV:L/PR:L/UI:N) permite lectura fuera de límites (CWE-125) de datos del kernel via archivo sysfs, exponiendo información sensible del sistema.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-125
Referencias
- https://git.kernel.org/stable/c/113c08030a89aaf406f8a1d4549d758a67c2afba
- https://git.kernel.org/stable/c/3f566b626029ca8598d48e5074e56bb37399ca1b
- https://git.kernel.org/stable/c/5eb114f55b37dbc0487aa9c1913b81bb7837f1c4
- https://git.kernel.org/stable/c/68de7da092f38395dde523f2e5db26eba6c23e28
- https://git.kernel.org/stable/c/d45d9f45e7b1365fd0d9bf14680d6d5082a590d1
- https://git.kernel.org/stable/c/f5575041ec15310bdc50c42b8b22118cc900226e
- https://git.kernel.org/stable/c/f7419fc42afc035f6b29ce713e17dcd2000c833f
- https://git.kernel.org/stable/c/fc92d9e3de0b2d30a3ccc08048a5fad533e4672b
JSON original (NVD)
Mostrar
{
"id": "CVE-2022-49032",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2022-49032",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-10-22T13:11:06.095851Z"
}
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.1,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.2,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "b36e8257641a043764c62240316610c81e36376c",
"lessThan": "68de7da092f38395dde523f2e5db26eba6c23e28",
"versionType": "git"
},
{
"status": "affected",
"version": "b36e8257641a043764c62240316610c81e36376c",
"lessThan": "113c08030a89aaf406f8a1d4549d758a67c2afba",
"versionType": "git"
},
{
"status": "affected",
"version": "b36e8257641a043764c62240316610c81e36376c",
"lessThan": "f5575041ec15310bdc50c42b8b22118cc900226e",
"versionType": "git"
},
{
"status": "affected",
"version": "b36e8257641a043764c62240316610c81e36376c",
"lessThan": "3f566b626029ca8598d48e5074e56bb37399ca1b",
"versionType": "git"
},
{
"status": "affected",
"version": "b36e8257641a043764c62240316610c81e36376c",
"lessThan": "5eb114f55b37dbc0487aa9c1913b81bb7837f1c4",
"versionType": "git"
},
{
"status": "affected",
"version": "b36e8257641a043764c62240316610c81e36376c",
"lessThan": "f7419fc42afc035f6b29ce713e17dcd2000c833f",
"versionType": "git"
},
{
"status": "affected",
"version": "b36e8257641a043764c62240316610c81e36376c",
"lessThan": "d45d9f45e7b1365fd0d9bf14680d6d5082a590d1",
"versionType": "git"
},
{
"status": "affected",
"version": "b36e8257641a043764c62240316610c81e36376c",
"lessThan": "fc92d9e3de0b2d30a3ccc08048a5fad533e4672b",
"versionType": "git"
}
],
"programFiles": [
"drivers/iio/health/afe4404.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.8",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.9.335",
"versionType": "semver",
"lessThanOrEqual": "4.9.*"
},
{
"status": "unaffected",
"version": "4.14.301",
"versionType": "semver",
"lessThanOrEqual": "4.14.*"
},
{
"status": "unaffected",
"version": "4.19.268",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.226",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.158",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.82",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.0.12",
"versionType": "semver",
"lessThanOrEqual": "6.0.*"
},
{
"status": "unaffected",
"version": "6.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/iio/health/afe4404.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2024-10-21T20:15:13.877",
"references": [
{
"url": "https://git.kernel.org/stable/c/113c08030a89aaf406f8a1d4549d758a67c2afba",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/3f566b626029ca8598d48e5074e56bb37399ca1b",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/5eb114f55b37dbc0487aa9c1913b81bb7837f1c4",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/68de7da092f38395dde523f2e5db26eba6c23e28",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/d45d9f45e7b1365fd0d9bf14680d6d5082a590d1",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f5575041ec15310bdc50c42b8b22118cc900226e",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f7419fc42afc035f6b29ce713e17dcd2000c833f",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/fc92d9e3de0b2d30a3ccc08048a5fad533e4672b",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-125"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: health: afe4404: Fix oob read in afe4404_[read|write]_raw\n\nKASAN report out-of-bounds read as follows:\n\nBUG: KASAN: global-out-of-bounds in afe4404_read_raw+0x2ce/0x380\nRead of size 4 at addr ffffffffc00e4658 by task cat/278\n\nCall Trace:\n afe4404_read_raw\n iio_read_channel_info\n dev_attr_show\n\nThe buggy address belongs to the variable:\n afe4404_channel_leds+0x18/0xffffffffffffe9c0\n\nThis issue can be reproduce by singe command:\n\n $ cat /sys/bus/i2c/devices/0-0058/iio\\:device0/in_intensity6_raw\n\nThe array size of afe4404_channel_leds and afe4404_channel_offdacs\nare less than channels, so access with chan->address cause OOB read\nin afe4404_[read|write]_raw. Fix it by moving access before use them."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iio: health: afe4404: Se corrige la lectura oob en el informe de KASAN afe4404_[read|write]_raw de la siguiente manera: ERROR: KASAN: global-out-of-bounds en afe4404_read_raw+0x2ce/0x380 Lectura de tamaño 4 en la dirección ffffffffc00e4658 por la tarea cat/278 Rastreo de llamadas: afe4404_read_raw iio_read_channel_info dev_attr_show La dirección con errores pertenece a la variable: afe4404_channel_leds+0x18/0xffffffffffffe9c0 Este problema se puede reproducir con un solo comando: $ cat /sys/bus/i2c/devices/0-0058/iio\\:device0/in_intensity6_raw El tamaño de la matriz de afe4404_channel_leds y afe4404_channel_offdacs son menores que los canales, por lo que el acceso con chan->address provoca una lectura OOB en afe4404_[read|write]_raw. Solucione este problema moviendo el acceso antes de usarlos."
}
],
"lastModified": "2026-06-17T05:16:53.730",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D200C3B5-F98E-40BB-AF07-8CCA8B0F340D",
"versionEndExcluding": "4.9.335",
"versionStartIncluding": "4.8"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0EE18A3A-1E78-44D6-9FDB-B267E4819993",
"versionEndExcluding": "4.14.301",
"versionStartIncluding": "4.10"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "04705C94-71FA-46AB-AF73-B551892B0EBA",
"versionEndExcluding": "4.19.268",
"versionStartIncluding": "4.15"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "274F5087-5805-4D03-8C74-8517300658F1",
"versionEndExcluding": "5.4.226",
"versionStartIncluding": "4.20"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D0FB1AF1-0A0B-4419-B25F-C61F17380E18",
"versionEndExcluding": "5.10.158",
"versionStartIncluding": "5.5"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0DC20DB6-73C1-4465-B931-117BFB8EBB02",
"versionEndExcluding": "5.15.82",
"versionStartIncluding": "5.11"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D6D56E90-F3EE-413D-B3E2-B518932F0C7D",
"versionEndExcluding": "6.0.12",
"versionStartIncluding": "5.16"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E7E331DA-1FB0-4DEC-91AC-7DA69D461C11"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "17F0B248-42CF-4AE6-A469-BB1BAE7F4705"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E2422816-0C14-4B5E-A1E6-A9D776E5C49B"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "35B26BE4-43A6-4A36-A7F6-5B3F572D9186"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3FFFB0B3-930D-408A-91E2-BAE0C2715D80"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}