207 lines
11 KiB
JSON
207 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-2022-49703",
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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": "2025-02-26T02:21:30.443Z",
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"datePublished": "2025-02-26T02:24:22.700Z",
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"dateUpdated": "2026-05-11T19:05:06.751Z"
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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": "2026-05-11T19:05:06.751Z"
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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\nscsi: ibmvfc: Store vhost pointer during subcrq allocation\n\nCurrently the back pointer from a queue to the vhost adapter isn't set\nuntil after subcrq interrupt registration. The value is available when a\nqueue is first allocated and can/should be also set for primary and async\nqueues as well as subcrqs.\n\nThis fixes a crash observed during kexec/kdump on Power 9 with legacy XICS\ninterrupt controller where a pending subcrq interrupt from the previous\nkernel can be replayed immediately upon IRQ registration resulting in\ndereference of a garbage backpointer in ibmvfc_interrupt_scsi().\n\nKernel attempted to read user page (58) - exploit attempt? (uid: 0)\nBUG: Kernel NULL pointer dereference on read at 0x00000058\nFaulting instruction address: 0xc008000003216a08\nOops: Kernel access of bad area, sig: 11 [#1]\n...\nNIP [c008000003216a08] ibmvfc_interrupt_scsi+0x40/0xb0 [ibmvfc]\nLR [c0000000082079e8] __handle_irq_event_percpu+0x98/0x270\nCall Trace:\n[c000000047fa3d80] [c0000000123e6180] 0xc0000000123e6180 (unreliable)\n[c000000047fa3df0] [c0000000082079e8] __handle_irq_event_percpu+0x98/0x270\n[c000000047fa3ea0] [c000000008207d18] handle_irq_event+0x98/0x188\n[c000000047fa3ef0] [c00000000820f564] handle_fasteoi_irq+0xc4/0x310\n[c000000047fa3f40] [c000000008205c60] generic_handle_irq+0x50/0x80\n[c000000047fa3f60] [c000000008015c40] __do_irq+0x70/0x1a0\n[c000000047fa3f90] [c000000008016d7c] __do_IRQ+0x9c/0x130\n[c000000014622f60] [0000000020000000] 0x20000000\n[c000000014622ff0] [c000000008016e50] do_IRQ+0x40/0xa0\n[c000000014623020] [c000000008017044] replay_soft_interrupts+0x194/0x2f0\n[c000000014623210] [c0000000080172a8] arch_local_irq_restore+0x108/0x170\n[c000000014623240] [c000000008eb1008] _raw_spin_unlock_irqrestore+0x58/0xb0\n[c000000014623270] [c00000000820b12c] __setup_irq+0x49c/0x9f0\n[c000000014623310] [c00000000820b7c0] request_threaded_irq+0x140/0x230\n[c000000014623380] [c008000003212a50] ibmvfc_register_scsi_channel+0x1e8/0x2f0 [ibmvfc]\n[c000000014623450] [c008000003213d1c] ibmvfc_init_sub_crqs+0xc4/0x1f0 [ibmvfc]\n[c0000000146234d0] [c0080000032145a8] ibmvfc_reset_crq+0x150/0x210 [ibmvfc]\n[c000000014623550] [c0080000032147c8] ibmvfc_init_crq+0x160/0x280 [ibmvfc]\n[c0000000146235f0] [c00800000321a9cc] ibmvfc_probe+0x2a4/0x530 [ibmvfc]"
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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/scsi/ibmvscsi/ibmvfc.c",
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"drivers/scsi/ibmvscsi/ibmvfc.h"
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],
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"versions": [
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{
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"version": "3034ebe26389740bb6b4a463e05afb51dc93c336",
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"lessThan": "8540f66196ca35b7b5e902932571c18b9fde0cd1",
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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": "3034ebe26389740bb6b4a463e05afb51dc93c336",
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"lessThan": "6d38e3b614ded59da8b95377a98df969a5a5627a",
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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": "3034ebe26389740bb6b4a463e05afb51dc93c336",
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"lessThan": "aeaadcde1a60138bceb65de3cdaeec78170b4459",
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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/scsi/ibmvscsi/ibmvfc.c",
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"drivers/scsi/ibmvscsi/ibmvfc.h"
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],
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"versions": [
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{
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"version": "5.12",
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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": "5.12",
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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": "5.15.51",
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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": "5.18.8",
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"lessThanOrEqual": "5.18.*",
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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": "5.19",
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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": "5.12",
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"versionEndExcluding": "5.15.51"
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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": "5.12",
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"versionEndExcluding": "5.18.8"
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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": "5.12",
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"versionEndExcluding": "5.19"
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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/8540f66196ca35b7b5e902932571c18b9fde0cd1"
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},
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{
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"url": "https://git.kernel.org/stable/c/6d38e3b614ded59da8b95377a98df969a5a5627a"
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},
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{
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"url": "https://git.kernel.org/stable/c/aeaadcde1a60138bceb65de3cdaeec78170b4459"
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}
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],
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"title": "scsi: ibmvfc: Store vhost pointer during subcrq allocation",
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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": 5.5,
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"integrityImpact": "NONE",
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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": "NONE"
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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-2022-49703",
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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": "2025-10-01T19:32:39.217289Z"
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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-476",
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"description": "CWE-476 NULL Pointer Dereference"
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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": "2025-10-01T19:36:45.750Z"
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}
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}
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]
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}
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} |