200 lines
9.7 KiB
JSON
200 lines
9.7 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-2023-52921",
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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": "2024-08-21T06:07:11.018Z",
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"datePublished": "2024-11-19T01:26:30.495Z",
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"dateUpdated": "2026-08-05T09:12:01.402Z"
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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": "2026-08-05T09:12:01.402Z"
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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\ndrm/amdgpu: fix possible UAF in amdgpu_cs_pass1()\n\nSince the gang_size check is outside of chunk parsing\nloop, we need to reset i before we free the chunk data.\n\nSuggested by Ye Zhang (@VAR10CK) of Baidu Security."
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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 path is reached via the AMDGPU_CS DRM ioctl on a local render/primary node (/dev/dri/renderD*), not via network packet processing or adjacent-network protocols.\nAC:L - An attacker reliably triggers the bug by opening the render node, creating a context, and submitting a command submission with accepted non-IB chunks (e.g. DEPENDENCIES/SYNCOBJ_*) so gang_size stays 0; no race or attacker-uncontrollable condition is required.\nPR:L - AMDGPU_CS is registered with DRM_AUTH|DRM_RENDER_ALLOW, so any unprivileged local user who can open the render node (typical video/render group membership on desktops, GPU-capable apps, Steam Deck, etc.) can reach the bug without root or init-namespace capabilities.\nUI:N - The attacker issues the ioctls themselves; no separate victim action such as mounting a filesystem or opening a malicious file is required.\nS:U - Impact is confined to the host kernel privilege boundary (local privilege escalation / memory corruption in amdgpu); this is not a VM escape, IOMMU bypass, or other cross-authority boundary crossing.\nC:H - The OOB kvfree of adjacent heap contents is an invalid/arbitrary free that enables classic UAF primitives after heap shaping, which per kernel CVSS guidance supports arbitrary memory disclosure.\nI:H - The same arbitrary-free/UAF primitive enables heap reuse and write primitives sufficient for control-flow hijacking or arbitrary kernel writes, so integrity impact is high.\nA:H - Freeing a garbage or live adjacent pointer readily causes kernel oops/panic or heap corruption crashes, so availability impact is high even without full exploitation."
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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/gpu/drm/amd/amdgpu/amdgpu_cs.c"
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],
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"versions": [
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{
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"version": "2ebf61f2cfb9a11bc17db30df3e675a4cd7418d3",
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"lessThan": "e08e9dd09809b16f8f8cee8c466841b33d24ed96",
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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": "2ebf61f2cfb9a11bc17db30df3e675a4cd7418d3",
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"lessThan": "90e065677e0362a777b9db97ea21d43a39211399",
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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/gpu/drm/amd/amdgpu/amdgpu_cs.c"
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],
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"versions": [
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{
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"version": "6.2",
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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": "6.2",
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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": "6.4.11",
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"lessThanOrEqual": "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": "6.5",
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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": "6.2",
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"versionEndExcluding": "6.4.11"
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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": "6.2",
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"versionEndExcluding": "6.5"
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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/e08e9dd09809b16f8f8cee8c466841b33d24ed96"
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},
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{
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"url": "https://git.kernel.org/stable/c/90e065677e0362a777b9db97ea21d43a39211399"
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}
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],
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"title": "drm/amdgpu: fix possible UAF in amdgpu_cs_pass1()",
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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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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 7.8,
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"attackVector": "LOCAL",
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"baseSeverity": "HIGH",
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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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"integrityImpact": "HIGH",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "HIGH"
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}
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},
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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-2023-52921",
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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": "2024-12-11T14:25:32.419190Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-416",
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"description": "CWE-416 Use After Free"
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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": "2024-12-11T14:58:32.296Z"
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}
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} |