289 lines
15 KiB
JSON
289 lines
15 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-64126",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2026-07-19T07:54:57.036Z",
|
|
"datePublished": "2026-07-19T15:40:23.276Z",
|
|
"dateUpdated": "2026-10-19T20:28:13.544Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-08-05T12:39:32.975Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: validate Add Extended Advertising Data length\n\nMGMT_OP_ADD_EXT_ADV_DATA is registered as a variable-length command,\nwith MGMT_ADD_EXT_ADV_DATA_SIZE as the fixed header size. The handler\nthen uses cp->adv_data_len and cp->scan_rsp_len to validate and copy\ncp->data, but it never checks that those bytes are part of the mgmt\ncommand payload.\n\nA short command can therefore make add_ext_adv_data() pass an\nout-of-bounds pointer into tlv_data_is_valid(). If the bytes beyond\nthe command buffer are addressable, they can also be copied into the\nadvertising instance as scan response data, where the caller can read\nthem back via MGMT_OP_GET_ADV_INSTANCE. The trigger requires\nCAP_NET_ADMIN in the initial user namespace; KASAN reports an 8-byte\nslab-out-of-bounds read.\n\nReject commands whose length does not match the fixed header plus both\nadvertising data lengths before parsing cp->data."
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L",
|
|
"baseScore": 7.3,
|
|
"baseSeverity": "HIGH"
|
|
},
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "AV:L - The bug is reached only through a local Bluetooth MGMT socket (AF_BLUETOOTH, HCI_CHANNEL_CONTROL) via sendmsg(), not from remote Bluetooth air traffic or network protocols.\nAC:L - An attacker fully controls the malformed MGMT command and length fields and can retry reliably; no race or victim-dependent timing is required to trigger the out-of-bounds read and copy.\nPR:L - Exploitation requires CAP_NET_ADMIN to obtain an HCI_SOCK_TRUSTED MGMT socket, which is reachable by an unprivileged user via user namespaces (e.g. unshare with CAP_NET_ADMIN) on the CONTROL-channel bind path.\nUI:N - No victim interaction is required; the attacker triggers the flaw directly by sending a crafted MGMT_OP_ADD_EXT_ADV_DATA command.\nS:U - Impact is confined to kernel memory disclosure and modification of Bluetooth advertising state within the same kernel security boundary, with no VM escape or cross-authority boundary crossing.\nC:H - A short command causes slab out-of-bounds reads (KASAN-reported) via tlv_data_is_valid(), and addressable bytes beyond the command buffer can be copied into scan response data and potentially exfiltrated over BLE advertising.\nI:H - The out-of-bounds pointer is used in memcpy() into kernel advertising structures, constituting kernel memory corruption with attacker-influenced content that can alter system-controlled Bluetooth data.\nA:L - While the primary impact is information disclosure, out-of-bounds kernel memory access can cause oopses or instability on some layouts; when uncertain, availability impact is rated above none."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"net/bluetooth/mgmt.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "12410572833a283ce92fcf9679ca8a2f372097ee",
|
|
"lessThan": "0d5104390b445e7bd664ad583837e4c04d892c9d",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "12410572833a283ce92fcf9679ca8a2f372097ee",
|
|
"lessThan": "14b01b9cba04e6ce82825f68fc4c4322fa4ffa43",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "12410572833a283ce92fcf9679ca8a2f372097ee",
|
|
"lessThan": "a143ce77a5292f2c9285137433d879ce71d190a7",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "12410572833a283ce92fcf9679ca8a2f372097ee",
|
|
"lessThan": "a6c75a3fad226ccbd8ef9110dee87c92c299f2ab",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "12410572833a283ce92fcf9679ca8a2f372097ee",
|
|
"lessThan": "f1febe93ef075314615f970a87681d9ab86691d1",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "12410572833a283ce92fcf9679ca8a2f372097ee",
|
|
"lessThan": "0bc1a5a69f541859293d79db72bd7854ac48df51",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "12410572833a283ce92fcf9679ca8a2f372097ee",
|
|
"lessThan": "d3f7d17960ed50df3a6709c5158caff989c8c905",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"net/bluetooth/mgmt.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "5.11",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "5.11",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.210",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.175",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.142",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.12.92",
|
|
"lessThanOrEqual": "6.12.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.18.34",
|
|
"lessThanOrEqual": "6.18.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.0.11",
|
|
"lessThanOrEqual": "7.0.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.1",
|
|
"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": "5.11",
|
|
"versionEndExcluding": "5.15.210"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.11",
|
|
"versionEndExcluding": "6.1.175"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.11",
|
|
"versionEndExcluding": "6.6.142"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.11",
|
|
"versionEndExcluding": "6.12.92"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.11",
|
|
"versionEndExcluding": "6.18.34"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.11",
|
|
"versionEndExcluding": "7.0.11"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.11",
|
|
"versionEndExcluding": "7.1"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/0d5104390b445e7bd664ad583837e4c04d892c9d"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/14b01b9cba04e6ce82825f68fc4c4322fa4ffa43"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/a143ce77a5292f2c9285137433d879ce71d190a7"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/a6c75a3fad226ccbd8ef9110dee87c92c299f2ab"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/f1febe93ef075314615f970a87681d9ab86691d1"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/0bc1a5a69f541859293d79db72bd7854ac48df51"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/d3f7d17960ed50df3a6709c5158caff989c8c905"
|
|
}
|
|
],
|
|
"title": "Bluetooth: MGMT: validate Add Extended Advertising Data length",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"id": "CVE-2026-64126",
|
|
"role": "CISA Coordinator",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "total"
|
|
}
|
|
],
|
|
"version": "2.0.3",
|
|
"timestamp": "2026-10-16T15:36:50.332780Z"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"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": "2026-10-19T20:28:13.544Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |