CVE-2023-52755
Estado: ModificadaCrítica (9.8)—
Gravedad9.8Crítica · CVSS 3.1
Probabilidad de explotación28 %mayor que el 98 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado
En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ksmbd: corrige la escritura fuera de los límites de slab en smb_inherit_dacl(). La escritura fuera de los límites de slab se debe a que las compensaciones son mayores que el tamaño de asignación de pntsd. Este parche agrega la verificación para validar 3 compensaciones usando el tamaño de asignación.
CVSS
- Puntuación base
- 9.8
- Versión
- 3.1
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días
- 28 %
- Percentil entre todas las CVEs puntuadas
- 98
- Fecha de la puntuación
- 20/10/2026
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).
Tecnologías afectadas (1)
CWE
- CWE-787
Referencias
Mostrar las 10 referencias
- https://git.kernel.org/stable/c/09d9d8b40a3338193619c14ed4dc040f4f119e70
- https://git.kernel.org/stable/c/712e01f32e577e7e48ab0adb5fe550646a3d93cb
- https://git.kernel.org/stable/c/8387c94d73ec66eb597c7a23a8d9eadf64bfbafa
- https://git.kernel.org/stable/c/aaf0a07d60887d6c36fc46a24de0083744f07819
- https://git.kernel.org/stable/c/eebff19acaa35820cb09ce2ccb3d21bee2156ffb
- https://git.kernel.org/stable/c/09d9d8b40a3338193619c14ed4dc040f4f119e70
- https://git.kernel.org/stable/c/712e01f32e577e7e48ab0adb5fe550646a3d93cb
- https://git.kernel.org/stable/c/8387c94d73ec66eb597c7a23a8d9eadf64bfbafa
- https://git.kernel.org/stable/c/aaf0a07d60887d6c36fc46a24de0083744f07819
- https://git.kernel.org/stable/c/eebff19acaa35820cb09ce2ccb3d21bee2156ffb
JSON original (NVD)
Mostrar
{
"id": "CVE-2023-52755",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-52755",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2024-08-01T03:55:53.690996Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 9.8,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 3.9
},
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 8.4,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 2.5
}
]
},
"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": "0626e6641f6b467447c81dd7678a69c66f7746cf",
"lessThan": "aaf0a07d60887d6c36fc46a24de0083744f07819",
"versionType": "git"
},
{
"status": "affected",
"version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
"lessThan": "8387c94d73ec66eb597c7a23a8d9eadf64bfbafa",
"versionType": "git"
},
{
"status": "affected",
"version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
"lessThan": "09d9d8b40a3338193619c14ed4dc040f4f119e70",
"versionType": "git"
},
{
"status": "affected",
"version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
"lessThan": "712e01f32e577e7e48ab0adb5fe550646a3d93cb",
"versionType": "git"
},
{
"status": "affected",
"version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
"lessThan": "eebff19acaa35820cb09ce2ccb3d21bee2156ffb",
"versionType": "git"
}
],
"programFiles": [
"fs/smb/server/smbacl.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.15"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.15",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.140",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.64",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.5.13",
"versionType": "semver",
"lessThanOrEqual": "6.5.*"
},
{
"status": "unaffected",
"version": "6.6.3",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.7",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/smb/server/smbacl.c"
],
"defaultStatus": "affected"
}
]
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"affectedData": [
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "affected",
"version": "1da177e4c3f4",
"lessThan": "aaf0a07d6088",
"versionType": "git"
},
{
"status": "affected",
"version": "1da177e4c3f4",
"lessThan": "8387c94d73ec",
"versionType": "git"
},
{
"status": "affected",
"version": "1da177e4c3f4",
"lessThan": "09d9d8b40a33",
"versionType": "git"
},
{
"status": "affected",
"version": "1da177e4c3f4",
"lessThan": "712e01f32e57",
"versionType": "git"
},
{
"status": "affected",
"version": "1da177e4c3f4",
"lessThan": "eebff19acaa3",
"versionType": "git"
}
],
"defaultStatus": "affected"
}
]
}
],
"published": "2024-05-21T16:15:15.037",
"references": [
{
"url": "https://git.kernel.org/stable/c/09d9d8b40a3338193619c14ed4dc040f4f119e70",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/712e01f32e577e7e48ab0adb5fe550646a3d93cb",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/8387c94d73ec66eb597c7a23a8d9eadf64bfbafa",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/aaf0a07d60887d6c36fc46a24de0083744f07819",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/eebff19acaa35820cb09ce2ccb3d21bee2156ffb",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/09d9d8b40a3338193619c14ed4dc040f4f119e70",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/712e01f32e577e7e48ab0adb5fe550646a3d93cb",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/8387c94d73ec66eb597c7a23a8d9eadf64bfbafa",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/aaf0a07d60887d6c36fc46a24de0083744f07819",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://git.kernel.org/stable/c/eebff19acaa35820cb09ce2ccb3d21bee2156ffb",
"tags": [
"Patch"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"description": [
{
"lang": "en",
"value": "CWE-787"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix slab out of bounds write in smb_inherit_dacl()\n\nslab out-of-bounds write is caused by that offsets is bigger than pntsd\nallocation size. This patch add the check to validate 3 offsets using\nallocation size."
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ksmbd: corrige la escritura fuera de los límites de slab en smb_inherit_dacl(). La escritura fuera de los límites de slab se debe a que las compensaciones son mayores que el tamaño de asignación de pntsd. Este parche agrega la verificación para validar 3 compensaciones usando el tamaño de asignación."
}
],
"lastModified": "2026-08-04T10:18:39.970",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8A5D0FDE-F72D-44B7-B376-4D382F5A5AE1",
"versionEndExcluding": "5.15.140",
"versionStartIncluding": "5.15"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8D7C884A-CAA2-4EA2-9FEB-5CE776D7B05F",
"versionEndExcluding": "6.1.64",
"versionStartIncluding": "5.16"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "674C4F82-C336-4B49-BF64-1DE422E889C4",
"versionEndExcluding": "6.5.13",
"versionStartIncluding": "6.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B58252FA-A49C-411F-9B28-DC5FE44BC5A0",
"versionEndExcluding": "6.6.3",
"versionStartIncluding": "6.6"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}