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vuln-cve/data/2025/21xxx/CVE-2025-21742.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-21742",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2024-12-29T08:45:45.757Z",
"datePublished": "2025-02-27T02:12:16.207Z",
"dateUpdated": "2026-05-11T21:05:32.954Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T21:05:32.954Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusbnet: ipheth: use static NDP16 location in URB\n\nOriginal code allowed for the start of NDP16 to be anywhere within the\nURB based on the `wNdpIndex` value in NTH16. Only the start position of\nNDP16 was checked, so it was possible for even the fixed-length part\nof NDP16 to extend past the end of URB, leading to an out-of-bounds\nread.\n\nOn iOS devices, the NDP16 header always directly follows NTH16. Rely on\nand check for this specific format.\n\nThis, along with NCM-specific minimal URB length check that already\nexists, will ensure that the fixed-length part of NDP16 plus a set\namount of DPEs fit within the URB.\n\nNote that this commit alone does not fully address the OoB read.\nThe limit on the amount of DPEs needs to be enforced separately."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/net/usb/ipheth.c"
],
"versions": [
{
"version": "a2d274c62e44b1995c170595db3865c6fe701226",
"lessThan": "8fb062178e1ce180e2cfdc9abc83a1b9fea381ca",
"status": "affected",
"versionType": "git"
},
{
"version": "a2d274c62e44b1995c170595db3865c6fe701226",
"lessThan": "cf1ac7f7cf601ac31d1580559c002b5e37b733b7",
"status": "affected",
"versionType": "git"
},
{
"version": "a2d274c62e44b1995c170595db3865c6fe701226",
"lessThan": "2b619445dcb6dab97d8ed033fb57225aca1288c4",
"status": "affected",
"versionType": "git"
},
{
"version": "a2d274c62e44b1995c170595db3865c6fe701226",
"lessThan": "86586dcb75cb8fd062a518aca8ee667938b91efb",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/net/usb/ipheth.c"
],
"versions": [
{
"version": "6.5",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.5",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.78",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.14",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.13.3",
"lessThanOrEqual": "6.13.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.14",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.5",
"versionEndExcluding": "6.6.78"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.5",
"versionEndExcluding": "6.12.14"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.5",
"versionEndExcluding": "6.13.3"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.5",
"versionEndExcluding": "6.14"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/8fb062178e1ce180e2cfdc9abc83a1b9fea381ca"
},
{
"url": "https://git.kernel.org/stable/c/cf1ac7f7cf601ac31d1580559c002b5e37b733b7"
},
{
"url": "https://git.kernel.org/stable/c/2b619445dcb6dab97d8ed033fb57225aca1288c4"
},
{
"url": "https://git.kernel.org/stable/c/86586dcb75cb8fd062a518aca8ee667938b91efb"
}
],
"title": "usbnet: ipheth: use static NDP16 location in URB",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"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"
}
},
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2025-21742",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2025-10-01T19:31:07.424616Z"
}
}
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"type": "CWE",
"cweId": "CWE-125",
"description": "CWE-125 Out-of-bounds Read"
}
]
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2025-10-01T19:36:41.519Z"
}
}
]
}
}