CVE-2023-53456
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
scsi: qla4xxx: Add length check when parsing nlattrs
There are three places that qla4xxx parses nlattrs:
- qla4xxx_set_chap_entry()
- qla4xxx_iface_set_param()
- qla4xxx_sysfs_ddb_set_param()
and each of them directly converts the nlattr to specific pointer of structure without length checking. This could be dangerous as those attributes are not validated and a malformed nlattr (e.g., length 0) could result in an OOB read that leaks heap dirty data.
Add the nla_len check before accessing the nlattr data and return EINVAL if the length check fails.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.16%
- Percentil entre todas las CVEs puntuadas: 4
- 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).
Tecnologías afectadas (1)
CWE
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/25feffb3fbd51ae81d92c65cebc0e932663828b3
- https://git.kernel.org/stable/c/47cd3770e31df942e2bb925a9a855c79ed0662eb
- https://git.kernel.org/stable/c/47f3be62eab50b8cd7e1ae5fc2c4dae687497c34
- https://git.kernel.org/stable/c/4ed21975311247bb84e82298eeb359ec0a0fa84d
- https://git.kernel.org/stable/c/5925e224cc6edfef57b20447f18323208461309b
- https://git.kernel.org/stable/c/6d65079c69dc1feb817ed71f5bd15e83a7d6832d
- https://git.kernel.org/stable/c/b018c0440b871d8b001c996e95fa4538bd292de6
- https://git.kernel.org/stable/c/cfa6a1a79ed6d336fac7a5d87eb5471e4401829f
- https://git.kernel.org/stable/c/f61fc650c47849637fa1771a31a11674c824138a
JSON original (NVD)
Mostrar
{
"id": "CVE-2023-53456",
"cveTags": [],
"metrics": {
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"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": "00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80",
"lessThan": "cfa6a1a79ed6d336fac7a5d87eb5471e4401829f",
"versionType": "git"
},
{
"status": "affected",
"version": "00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80",
"lessThan": "5925e224cc6edfef57b20447f18323208461309b",
"versionType": "git"
},
{
"status": "affected",
"version": "00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80",
"lessThan": "47f3be62eab50b8cd7e1ae5fc2c4dae687497c34",
"versionType": "git"
},
{
"status": "affected",
"version": "00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80",
"lessThan": "6d65079c69dc1feb817ed71f5bd15e83a7d6832d",
"versionType": "git"
},
{
"status": "affected",
"version": "00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80",
"lessThan": "f61fc650c47849637fa1771a31a11674c824138a",
"versionType": "git"
},
{
"status": "affected",
"version": "00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80",
"lessThan": "25feffb3fbd51ae81d92c65cebc0e932663828b3",
"versionType": "git"
},
{
"status": "affected",
"version": "00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80",
"lessThan": "4ed21975311247bb84e82298eeb359ec0a0fa84d",
"versionType": "git"
},
{
"status": "affected",
"version": "00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80",
"lessThan": "b018c0440b871d8b001c996e95fa4538bd292de6",
"versionType": "git"
},
{
"status": "affected",
"version": "00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80",
"lessThan": "47cd3770e31df942e2bb925a9a855c79ed0662eb",
"versionType": "git"
}
],
"programFiles": [
"drivers/scsi/qla4xxx/ql4_os.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.2"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.14.326",
"versionType": "semver",
"lessThanOrEqual": "4.14.*"
},
{
"status": "unaffected",
"version": "4.19.295",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.257",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.195",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.132",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.53",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.4.16",
"versionType": "semver",
"lessThanOrEqual": "6.4.*"
},
{
"status": "unaffected",
"version": "6.5.3",
"versionType": "semver",
"lessThanOrEqual": "6.5.*"
},
{
"status": "unaffected",
"version": "6.6",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/scsi/qla4xxx/ql4_os.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-10-01T12:15:45.983",
"references": [
{
"url": "https://git.kernel.org/stable/c/25feffb3fbd51ae81d92c65cebc0e932663828b3",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/47cd3770e31df942e2bb925a9a855c79ed0662eb",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/47f3be62eab50b8cd7e1ae5fc2c4dae687497c34",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/4ed21975311247bb84e82298eeb359ec0a0fa84d",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/5925e224cc6edfef57b20447f18323208461309b",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/6d65079c69dc1feb817ed71f5bd15e83a7d6832d",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/b018c0440b871d8b001c996e95fa4538bd292de6",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/cfa6a1a79ed6d336fac7a5d87eb5471e4401829f",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f61fc650c47849637fa1771a31a11674c824138a",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla4xxx: Add length check when parsing nlattrs\n\nThere are three places that qla4xxx parses nlattrs:\n\n - qla4xxx_set_chap_entry()\n\n - qla4xxx_iface_set_param()\n\n - qla4xxx_sysfs_ddb_set_param()\n\nand each of them directly converts the nlattr to specific pointer of\nstructure without length checking. This could be dangerous as those\nattributes are not validated and a malformed nlattr (e.g., length 0) could\nresult in an OOB read that leaks heap dirty data.\n\nAdd the nla_len check before accessing the nlattr data and return EINVAL if\nthe length check fails."
}
],
"lastModified": "2026-06-17T06:45:23.180",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5101C2A9-BFF1-4181-A09E-AD65D7795F6B",
"versionEndExcluding": "4.14.326",
"versionStartIncluding": "3.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D419C7D6-F33D-4EF8-8950-1CB5DDF6A55D",
"versionEndExcluding": "4.19.295",
"versionStartIncluding": "4.15"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "834BD148-28EC-43A4-A4F5-458124A1E39F",
"versionEndExcluding": "5.4.257",
"versionStartIncluding": "4.20"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C385B650-53DB-4BFB-83D1-1D8FADF653EF",
"versionEndExcluding": "5.10.195",
"versionStartIncluding": "5.5"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5913891D-409A-4EEC-9231-F2EF5A493BC7",
"versionEndExcluding": "5.15.132",
"versionStartIncluding": "5.11"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B20754AF-3B8C-4574-A70D-EC24933810E5",
"versionEndExcluding": "6.1.53",
"versionStartIncluding": "5.16"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C3039EA3-F6CA-43EF-9F17-81A7EC6841EF",
"versionEndExcluding": "6.4.16",
"versionStartIncluding": "6.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "880C803A-BEAE-4DA0-8A59-AC023F7B4EE3",
"versionEndExcluding": "6.5.3",
"versionStartIncluding": "6.5"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}