165 lines
8.6 KiB
JSON
165 lines
8.6 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2023-7356",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-10-21T14:57:20.443Z",
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"datePublished": "2026-10-21T14:59:38.724Z",
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"dateUpdated": "2026-10-26T06:55:41.493Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-10-26T06:55:41.493Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: Copy BASE if service data matches EIR_BAA_SERVICE_UUID\n\nCopy the content of a Periodic Advertisement Report to BASE only if\nthe service UUID is Basic Audio Announcement Service UUID."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 8.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:A - A BLE Periodic Advertising Report supplies ev3->length and ev3->data through hci_recv_frame()→hci_event_packet()→hci_le_per_adv_report_evt()→hci_proto_connect_ind()→iso_connect_ind(); exploitation therefore requires Bluetooth radio proximity.\nAC:L - A single matched report with length 251–255 overwrites padding and up to five low bytes of iso_pinfo.conn; iso_connect_ind() performs the memcpy deterministically, with no race or condition outside the broadcaster's control.\nPR:N - hci_le_per_adv_report_evt() performs no pairing, authentication, or authorization check before calling iso_connect_ind(); iso_match_sync_handle_pa_report() only matches the unauthenticated report to an existing periodic-advertising sync.\nUI:N - Once an ISO broadcast-sink listener is synchronized, receipt of the crafted periodic report invokes iso_connect_ind() automatically; no victim action is required for the overflowing report.\nS:U - The overwrite corrupts iso_pinfo and its iso_conn pointer within the same host kernel security authority; it does not cross a VM, IOMMU, or other security boundary.\nC:H - base[248] immediately precedes the live conn pointer, and the overflow can redirect later conn->hcon reads in iso_sock_get_qos() and related paths, providing exploitable kernel-pointer corruption capable of arbitrary memory disclosure.\nI:H - The unchecked memcpy() writes beyond iso_pinfo.base into low bytes of iso_pinfo.conn; subsequent writes and lock operations through that corrupted pointer in iso_chan_del() and timer helpers can enable arbitrary kernel-memory corruption or control-flow hijacking.\nA:H - A corrupted iso_pinfo.conn is dereferenced by iso_sock_clear_timer(), iso_sock_get_qos(), send, and close paths, allowing an unauthenticated broadcaster to trigger a kernel oops or panic."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/bluetooth/iso.c"
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],
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"versions": [
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{
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"version": "e4cfffb5ebc80820f46cf16a6fa5be1b436bdf2d",
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"lessThan": "ba25efe15e8fd909884e113a86c6ccd07d88256e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "9c0826310bfb784c9bac7d1d9454e304185446c5",
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"lessThan": "927ef409f713929dea2b9a5ed5bb65e712be0050",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "9c0826310bfb784c9bac7d1d9454e304185446c5",
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"lessThan": "f4da3ee15de9944482382181329bb6d7335ca003",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "6.1.159",
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"lessThan": "6.1.178",
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"status": "affected",
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"versionType": "semver"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/bluetooth/iso.c"
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],
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"versions": [
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{
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"version": "6.6",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.6",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.178",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.145",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.7",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.1.159",
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"versionEndExcluding": "6.1.178"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.6",
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"versionEndExcluding": "6.6.145"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.6",
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"versionEndExcluding": "6.7"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/ba25efe15e8fd909884e113a86c6ccd07d88256e"
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},
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{
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"url": "https://git.kernel.org/stable/c/927ef409f713929dea2b9a5ed5bb65e712be0050"
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},
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{
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"url": "https://git.kernel.org/stable/c/f4da3ee15de9944482382181329bb6d7335ca003"
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}
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],
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"title": "Bluetooth: ISO: Copy BASE if service data matches EIR_BAA_SERVICE_UUID",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |