332 lines
16 KiB
JSON
332 lines
16 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"cveMetadata": {
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"cveId": "CVE-2024-35967",
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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": "2024-05-17T13:50:33.140Z",
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"datePublished": "2024-05-20T09:41:56.503Z",
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"dateUpdated": "2026-10-15T00:41:48.124Z"
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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": "2026-08-05T11:31:16.372Z"
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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: SCO: Fix not validating setsockopt user input\n\nsyzbot reported sco_sock_setsockopt() is copying data without\nchecking user input length.\n\nBUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset\ninclude/linux/sockptr.h:49 [inline]\nBUG: KASAN: slab-out-of-bounds in copy_from_sockptr\ninclude/linux/sockptr.h:55 [inline]\nBUG: KASAN: slab-out-of-bounds in sco_sock_setsockopt+0xc0b/0xf90\nnet/bluetooth/sco.c:893\nRead of size 4 at addr ffff88805f7b15a3 by task syz-executor.5/12578"
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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:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
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"baseScore": 7.1,
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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:L - The flaw is triggered purely through the setsockopt(2) syscall on a locally created AF_BLUETOOTH/BTPROTO_SCO socket; no Bluetooth radio traffic, paired peer, or adapter link is involved in reaching the unvalidated copy.\nAC:L - Exploitation is fully deterministic and attacker-controlled — issue setsockopt(fd, SOL_BLUETOOTH, BT_PKT_STATUS/BT_DEFER_SETUP, buf, optlen<4); no race, no timing window, and no memory-layout condition outside the attacker's influence.\nPR:L - sco_sock_create() and bt_sock_create() contain no capability check (unlike HCI raw sockets), so any unprivileged local user can open a SCO socket and call setsockopt; only the permissive security_socket_setsockopt() LSM hook sits on the path.\nUI:N - The attacker performs every step itself via its own socket; no victim action, mount, or file open is needed.\nS:U - The out-of-bounds access occurs in kernel slab memory within the same security authority; there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - The bug is an out-of-bounds read of kernel heap memory past the end of the optval allocation, and the disclosed value is observable back in userspace because sco_sock_getsockopt() returns the BT_SK_DEFER_SETUP/BT_SK_PKT_STATUS bits, giving a repeatable oracle over adjacent kernel memory that can be combined with heap grooming to leak kernel data.\nI:N - The defect is a read past the end of a buffer; nothing is written out of bounds, and the leaked value only toggles a flag on the attacker's own socket, so no data outside the attacker's authority is modified.\nA:H - The slab out-of-bounds read triggers a KASAN BUG/panic on hardened and debug kernels and can fault when the copy crosses into an unmapped or guarded page, producing a kernel oops repeatable at will by an unprivileged user."
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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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"include/net/bluetooth/bluetooth.h",
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"net/bluetooth/sco.c"
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],
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"versions": [
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"version": "b96e9c671b05f95126753a22145d4509d45ca197",
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"lessThan": "b0e30c37695b614bee69187f86eaf250e36606ce",
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"status": "affected",
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{
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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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"include/net/bluetooth/bluetooth.h",
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"net/bluetooth/sco.c"
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],
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"versions": [
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{
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"version": "3.8",
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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": "3.8",
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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": "5.10.216",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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{
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"version": "5.15.178",
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"status": "unaffected",
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},
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{
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"version": "6.1.87",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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},
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{
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"version": "6.6.28",
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"status": "unaffected",
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},
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{
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"version": "6.8.7",
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"lessThanOrEqual": "6.8.*",
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"status": "unaffected",
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},
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{
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"version": "6.9",
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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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"cpeApplicability": [
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"url": "https://git.kernel.org/stable/c/2c2dc87cdebef3fe3b9d7a711a984c70e376e32e"
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],
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"title": "Bluetooth: SCO: Fix not validating setsockopt user input",
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