223 lines
12 KiB
JSON
223 lines
12 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-2024-49874",
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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": "2024-10-21T12:17:06.020Z",
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"datePublished": "2024-10-21T18:01:14.762Z",
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"dateUpdated": "2026-08-05T11:40:17.116Z"
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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": "2026-08-05T11:40:17.116Z"
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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\ni3c: master: svc: Fix use after free vulnerability in svc_i3c_master Driver Due to Race Condition\n\nIn the svc_i3c_master_probe function, &master->hj_work is bound with\nsvc_i3c_master_hj_work, &master->ibi_work is bound with\nsvc_i3c_master_ibi_work. And svc_i3c_master_ibi_work can start the\nhj_work, svc_i3c_master_irq_handler can start the ibi_work.\n\nIf we remove the module which will call svc_i3c_master_remove to\nmake cleanup, it will free master->base through i3c_master_unregister\nwhile the work mentioned above will be used. The sequence of operations\nthat may lead to a UAF bug is as follows:\n\nCPU0 CPU1\n\n | svc_i3c_master_hj_work\nsvc_i3c_master_remove |\ni3c_master_unregister(&master->base)|\ndevice_unregister(&master->dev) |\ndevice_release |\n//free master->base |\n | i3c_master_do_daa(&master->base)\n | //use master->base\n\nFix it by ensuring that the work is canceled before proceeding with the\ncleanup in svc_i3c_master_remove."
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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 UAF is triggered through local operations on the device — driver unbind/module removal via sysfs or rmmod on the platform device — combined with in-kernel workqueue activity on the local I3C controller. No network or remote protocol data reaches this path.\nAC:L - The attacker drives one side of the race directly (repeatable bind/unbind cycles) while the hot-join work is generated by ordinary I3C bus activity, and the window can be widened and retried indefinitely until it is won; per kernel scoring practice a UAF race whose triggering side is attacker-initiated is Low.\nPR:L - The teardown path is reached from local userspace device-management interfaces on the I3C master device, and no authentication beyond ordinary local access to the device/driver interfaces is required to keep re-triggering the removal path; scored at the lower privilege tier consistent with comparable driver-removal UAFs.\nUI:N - No victim action is needed — the removal path and the hot-join work both proceed automatically once the unbind is issued and a hot-join IBI arrives.\nS:U - The corruption and its consequences are confined to the kernel's own memory and security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The use-after-free lets `i3c_master_do_daa()` read `master->base`, `master->bus`, and `master->ops` out of a freed and potentially re-allocated slab object, so an attacker who grooms the heap can read back kernel memory contents through the stale object.\nI:H - The freed object is dereferenced for an indirect call (`master->ops->do_daa(master)`) and for lock manipulation, so heap spraying over the freed allocation gives a control-flow hijack and arbitrary-write primitive rather than a mere stale read.\nA:H - Even unexploited, the use-after-free corrupts kernel state and dereferences freed pointers, reliably producing an oops or panic and taking down the system."
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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/i3c/master/svc-i3c-master.c"
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],
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"versions": [
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{
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"version": "87e0f28eda36c7843523aa8dd0c5dab3331e9718",
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"lessThan": "56bddf543d4d7ddeff3f87b554ddacfdf086bffe",
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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": "0f74f8b6675cc36d689abb4d9b3d75ab4049b7d7",
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"lessThan": "4ac637122930cc4ab7e2c22e364cf3aaf96b05b1",
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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": "0f74f8b6675cc36d689abb4d9b3d75ab4049b7d7",
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"lessThan": "4318998892bf8fe99f97bea18c37ae7b685af75a",
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"status": "affected",
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},
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{
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"version": "0f74f8b6675cc36d689abb4d9b3d75ab4049b7d7",
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"lessThan": "27b55724d3f781dd6e635e89dc6e2fd78fa81a00",
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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": "0f74f8b6675cc36d689abb4d9b3d75ab4049b7d7",
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"lessThan": "61850725779709369c7e907ae8c7c75dc7cec4f3",
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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/i3c/master/svc-i3c-master.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": "6.6.55",
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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": "6.10.14",
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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": "6.11.3",
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"lessThanOrEqual": "6.11.*",
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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",
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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": "6.6.55"
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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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"versionEndExcluding": "6.11.3"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "6.12"
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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/56bddf543d4d7ddeff3f87b554ddacfdf086bffe"
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},
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{
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"url": "https://git.kernel.org/stable/c/4ac637122930cc4ab7e2c22e364cf3aaf96b05b1"
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},
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{
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"url": "https://git.kernel.org/stable/c/4318998892bf8fe99f97bea18c37ae7b685af75a"
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},
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{
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"url": "https://git.kernel.org/stable/c/27b55724d3f781dd6e635e89dc6e2fd78fa81a00"
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},
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{
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"url": "https://git.kernel.org/stable/c/61850725779709369c7e907ae8c7c75dc7cec4f3"
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}
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],
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"title": "i3c: master: svc: Fix use after free vulnerability in svc_i3c_master Driver Due to Race Condition",
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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-2024-49874",
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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": "2024-10-22T13:46:33.404172Z"
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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": "2024-10-22T13:48:51.538Z"
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}
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}
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]
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}
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} |