314 lines
16 KiB
JSON
314 lines
16 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-2025-38180",
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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": "2025-04-16T04:51:23.992Z",
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"datePublished": "2025-07-04T13:37:08.258Z",
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"dateUpdated": "2026-08-05T12:00:10.648Z"
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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": "2026-08-05T12:00:10.648Z"
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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\nnet: atm: fix /proc/net/atm/lec handling\n\n/proc/net/atm/lec must ensure safety against dev_lec[] changes.\n\nIt appears it had dev_put() calls without prior dev_hold(),\nleading to imbalance and UAF."
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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:H/A:H",
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"baseScore": 7.8,
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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:L - The vulnerability is triggered by reading the local procfs file /proc/net/atm/lec; no network protocol data reaches the defective code. Exploitation requires a local account or any local code execution context on the host network namespace.\nAC:L - The unbalanced dev_put() fires deterministically on every read() of the file — no race must be won, and the attacker controls how many times to repeat it to drive the net_device refcount arbitrarily negative. The secondary dev_lec[] race is also attacker-paced via a tight read loop.\nPR:L - /proc/net/atm/lec is created with mode 0444, so any unprivileged local user can read it with no capability check on the path; the lec module itself is autoloadable by an unprivileged user via request_module(\"lec\") in do_vcc_ioctl() before any capable() test. CAP_NET_ADMIN is only needed to configure the LANE interface, which is a property of the target deployment rather than of the attacker.\nUI:N - The attacker triggers the defect entirely on their own by reading the procfs file; no victim action or cooperation of any kind is needed.\nS:U - The corrupted net_device object and the resulting memory corruption stay within the kernel's own security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - The refcount underflow lets a live net_device be freed while still referenced, and the missing lec_mutex allows the seq_show path to dereference a freed device; a UAF on a large kmalloc'd object gives the attacker control over the reclaimed contents and a kernel-memory read primitive.\nI:H - Premature free of an in-use net_device is a use-after-free on a structure dense with function pointers and list heads, sprayable for arbitrary write and control-flow hijack leading to privilege escalation.\nA:H - Driving the reference count below one reaches BUG_ON(netdev_refcnt_read(dev) != 1) in netdev_run_todo(), and use of the freed device oopses the kernel; either outcome is a full system crash reachable by an unprivileged loop."
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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/atm/lec.c"
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],
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"versions": [
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{
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"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "fcfccf56f4eba7d00aa2d33c7bb1b33083237742",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "f2d1443b18806640abdb530e88009af7be2588e7",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "ca3829c18c8d0ceb656605d3bff6bb3dfb078589",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "e612c4b014f5808fbc6beae21f5ccaca5e76a2f8",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "a5e3a144268899f1a8c445c8a3bfa15873ba85e8",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "5fe1b23a2f87f43aeeac51e08819cbc6fd808cbc",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "9b9aeb3ada44d8abea1e31e4446113f460848ae4",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "d03b79f459c7935cff830d98373474f440bd03ae",
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"status": "affected",
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"versionType": "git"
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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/atm/lec.c"
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],
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"versions": [
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{
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"version": "2.6.12",
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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": "2.6.12",
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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": "5.4.295",
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"lessThanOrEqual": "5.4.*",
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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": "5.10.239",
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"lessThanOrEqual": "5.10.*",
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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": "5.15.186",
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"lessThanOrEqual": "5.15.*",
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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": "6.1.142",
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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": "6.6.95",
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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": "6.12.35",
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"lessThanOrEqual": "6.12.*",
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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": "6.15.4",
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"lessThanOrEqual": "6.15.*",
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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": "6.16",
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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": "2.6.12",
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"versionEndExcluding": "5.4.295"
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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": "2.6.12",
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"versionEndExcluding": "5.10.239"
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.12",
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"versionEndExcluding": "5.15.186"
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"versionStartIncluding": "2.6.12",
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"versionEndExcluding": "6.1.142"
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "6.6.95"
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"versionEndExcluding": "6.12.35"
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "6.15.4"
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/fcfccf56f4eba7d00aa2d33c7bb1b33083237742"
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},
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{
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"url": "https://git.kernel.org/stable/c/f2d1443b18806640abdb530e88009af7be2588e7"
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},
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{
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"url": "https://git.kernel.org/stable/c/ca3829c18c8d0ceb656605d3bff6bb3dfb078589"
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},
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{
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"url": "https://git.kernel.org/stable/c/e612c4b014f5808fbc6beae21f5ccaca5e76a2f8"
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},
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{
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"url": "https://git.kernel.org/stable/c/a5e3a144268899f1a8c445c8a3bfa15873ba85e8"
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},
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{
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"url": "https://git.kernel.org/stable/c/5fe1b23a2f87f43aeeac51e08819cbc6fd808cbc"
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},
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{
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"url": "https://git.kernel.org/stable/c/9b9aeb3ada44d8abea1e31e4446113f460848ae4"
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},
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{
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"url": "https://git.kernel.org/stable/c/d03b79f459c7935cff830d98373474f440bd03ae"
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}
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],
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"title": "net: atm: fix /proc/net/atm/lec handling",
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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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"adp": [
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{
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
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},
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{
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"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
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}
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],
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2025-11-03T17:35:04.821Z"
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}
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},
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2025-38180",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-06-10T20:41:57.337618Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-06-11T18:44:17.953Z"
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}
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}
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]
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}
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} |