193 lines
11 KiB
JSON
193 lines
11 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-2024-43825",
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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": "2024-08-17T09:11:59.272Z",
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"datePublished": "2024-08-17T09:21:45.215Z",
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"dateUpdated": "2026-08-05T11:36:39.524Z"
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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": "2026-08-05T11:36:39.524Z"
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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\niio: Fix the sorting functionality in iio_gts_build_avail_time_table\n\nThe sorting in iio_gts_build_avail_time_table is not working as intended.\nIt could result in an out-of-bounds access when the time is zero.\n\nHere are more details:\n\n1. When the gts->itime_table[i].time_us is zero, e.g., the time\nsequence is `3, 0, 1`, the inner for-loop will not terminate and do\nout-of-bound writes. This is because once `times[j] > new`, the value\n`new` will be added in the current position and the `times[j]` will be\nmoved to `j+1` position, which makes the if-condition always hold.\nMeanwhile, idx will be added one, making the loop keep running without\ntermination and out-of-bound write.\n2. If none of the gts->itime_table[i].time_us is zero, the elements\nwill just be copied without being sorted as described in the comment\n\"Sort times from all tables to one and remove duplicates\".\n\nFor more details, please refer to\nhttps://lore.kernel.org/all/6dd0d822-046c-4dd2-9532-79d7ab96ec05@gmail.com."
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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 vulnerable function is only reachable through `devm_iio_init_iio_gts()` during IIO driver probe/module load on the local system, and its corrupted output is consumed via local sysfs `*_integration_time_available` reads. There is no network- or peer-supplied data anywhere on the path.\nAC:L - For an affected time table the overflow is fully deterministic — no race, no memory-layout luck, no timing window; every probe of the device runs the unbounded memmove loop identically.\nPR:L - No privilege check guards the corruption itself: it occurs automatically during device binding, and the resulting out-of-bounds heap contents are exposed through the world-readable sysfs integration-time attribute that any unprivileged local user can read.\nUI:N - The table is built automatically when the IIO sensor driver probes at boot or module load; no victim action is required, and reading back the leaked heap data is a plain sysfs read.\nS:U - Both the corrupted `times` allocation and the impacted slab neighbours live in the kernel's own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `iio_gts_us_to_int_micro()` reads `idx` entries from the undersized `times` buffer and those out-of-bounds heap bytes are published to userspace through `iio_gts_avail_times()`/`read_avail`, giving an unbounded kernel heap read primitive rather than a single bounded leak.\nI:H - The unterminated inner loop performs repeated `memmove()`s writing attacker-independent but unbounded data past the end of the kmalloc'd `times` object, overwriting adjacent slab objects — an out-of-bounds write that is a control-flow-hijack primitive per standard heap-corruption analysis.\nA:H - The runaway loop smashes the kernel heap and never terminates on its own, producing slab corruption, oops/panic, or a hang during probe."
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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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"drivers/iio/industrialio-gts-helper.c"
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],
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"versions": [
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{
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"version": "38416c28e16890b52fdd5eb73479299ec3f062f3",
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"lessThan": "31ff8464ef540785344994986a010031410f9ff3",
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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": "38416c28e16890b52fdd5eb73479299ec3f062f3",
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"lessThan": "b5046de32fd1532c3f67065197fc1da82f0b5193",
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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": "38416c28e16890b52fdd5eb73479299ec3f062f3",
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"lessThan": "5acc3f971a01be48d5ff4252d8f9cdb87998cdfb",
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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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"drivers/iio/industrialio-gts-helper.c"
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],
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"versions": [
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{
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"version": "6.4",
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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": "6.4",
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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": "6.6.44",
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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": "6.10.3",
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"lessThanOrEqual": "6.10.*",
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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": "6.11",
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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": "6.4",
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"versionEndExcluding": "6.6.44"
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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": "6.4",
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"versionEndExcluding": "6.10.3"
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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": "6.4",
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"versionEndExcluding": "6.11"
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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/31ff8464ef540785344994986a010031410f9ff3"
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},
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{
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"url": "https://git.kernel.org/stable/c/b5046de32fd1532c3f67065197fc1da82f0b5193"
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},
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{
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"url": "https://git.kernel.org/stable/c/5acc3f971a01be48d5ff4252d8f9cdb87998cdfb"
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}
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],
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"title": "iio: Fix the sorting functionality in iio_gts_build_avail_time_table",
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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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"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-2024-43825",
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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": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2024-09-10T16:08:48.020961Z"
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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": "2024-09-12T17:33:24.429Z"
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}
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}
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]
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}
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} |