305 lines
15 KiB
JSON
305 lines
15 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-2023-53372",
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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": "2025-09-17T14:54:09.734Z",
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"datePublished": "2025-09-18T13:33:19.549Z",
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"dateUpdated": "2026-08-05T09:13:40.871Z"
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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": "2026-08-05T09:13:40.871Z"
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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\nsctp: fix a potential overflow in sctp_ifwdtsn_skip\n\nCurrently, when traversing ifwdtsn skips with _sctp_walk_ifwdtsn, it only\nchecks the pos against the end of the chunk. However, the data left for\nthe last pos may be < sizeof(struct sctp_ifwdtsn_skip), and dereference\nit as struct sctp_ifwdtsn_skip may cause coverflow.\n\nThis patch fixes it by checking the pos against \"the end of the chunk -\nsizeof(struct sctp_ifwdtsn_skip)\" in sctp_ifwdtsn_skip, similar to\nsctp_fwdtsn_skip."
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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:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
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"baseScore": 8.2,
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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:N - The bug is in parsing a received I-FORWARD-TSN chunk on the SCTP input path (sctp_rcv → state machine → sctp_sf_eat_fwd_tsn → sctp_validate_iftsn/sctp_handle_iftsn). A remote peer reaches it by sending crafted SCTP packets over an established association.\nAC:L - Once an association has negotiated PR-SCTP and stream interleaving, the attacker fully controls chunk length and contents and can deterministically make the final skip entry shorter than sizeof(struct sctp_ifwdtsn_skip). No race or uncontrollable memory layout is required.\nPR:N - Exploitation needs only being the remote SCTP peer of a service that accepts associations with interleaving enabled; no local account, capability, or authenticated privilege on the victim is required.\nUI:N - The attacker initiates the association and sends the malformed I-FWD-TSN; no additional victim action (mount, open, click) is required at exploit time.\nS:U - The out-of-bounds read and any resulting fault stay within the same host kernel authority and do not cross a VM, IOMMU, or sandbox boundary.\nC:L - The walk can read up to 7 bytes past the chunk (and past skb_tail_pointer into adjacent/uninitialized kernel memory). That is a real OOB read but strictly bounded to a few bytes and those bytes are only used as stream/mid/flags internally, not returned to the attacker.\nI:N - The defect is an out-of-bounds read only; stream IDs are still bounds-checked against incnt before use, and there is no OOB write or memory-corruption write primitive. Any stream-skip side effects are within what a peer can already do with a well-formed I-FWD-TSN.\nA:H - Reading past skb_tail_pointer into unmapped or invalid memory can oops/panic the kernel, and a remote peer can trigger this repeatedly on a vulnerable interleaving-enabled association."
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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/sctp/stream_interleave.c"
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],
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"versions": [
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{
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"version": "0fc2ea922c8ad5520c80f03facbf396c81dce802",
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"lessThan": "4fbd094d4131a10d06a45d64158567052a35b3f4",
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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": "0fc2ea922c8ad5520c80f03facbf396c81dce802",
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"lessThan": "ad831a7079c99c01e801764b53bc9997c2e9c0f7",
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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": "0fc2ea922c8ad5520c80f03facbf396c81dce802",
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"lessThan": "79b28f42214a3d0d6a8c514db3602260bd5d6cb5",
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"status": "affected",
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},
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{
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"version": "0fc2ea922c8ad5520c80f03facbf396c81dce802",
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"lessThan": "6109f5b13ce3e3e537db6f18976ec0e9118d1c6f",
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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": "0fc2ea922c8ad5520c80f03facbf396c81dce802",
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"lessThan": "5c9367ac5a22d71841bcd00130f9146c9b227d57",
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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": "0fc2ea922c8ad5520c80f03facbf396c81dce802",
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"lessThan": "ad988e9b5ff04607e624a459209e8c2d0c15fc73",
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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": "0fc2ea922c8ad5520c80f03facbf396c81dce802",
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"lessThan": "32832a2caf82663870126c5186cf8f86c8b2a649",
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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/sctp/stream_interleave.c"
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],
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"versions": [
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{
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"version": "4.16",
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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": "4.16",
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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": "4.19.281",
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"lessThanOrEqual": "4.19.*",
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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": "5.4.241",
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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": "5.10.178",
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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": "5.15.108",
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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": "6.1.25",
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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": "6.2.12",
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"lessThanOrEqual": "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": "6.3",
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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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"operator": "OR",
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"versionStartIncluding": "4.16",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/4fbd094d4131a10d06a45d64158567052a35b3f4"
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},
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{
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"url": "https://git.kernel.org/stable/c/ad831a7079c99c01e801764b53bc9997c2e9c0f7"
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{
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"url": "https://git.kernel.org/stable/c/79b28f42214a3d0d6a8c514db3602260bd5d6cb5"
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"url": "https://git.kernel.org/stable/c/6109f5b13ce3e3e537db6f18976ec0e9118d1c6f"
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"url": "https://git.kernel.org/stable/c/5c9367ac5a22d71841bcd00130f9146c9b227d57"
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"url": "https://git.kernel.org/stable/c/ad988e9b5ff04607e624a459209e8c2d0c15fc73"
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"url": "https://git.kernel.org/stable/c/32832a2caf82663870126c5186cf8f86c8b2a649"
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}
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],
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"title": "sctp: fix a potential overflow in sctp_ifwdtsn_skip",
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"x_generator": {
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"engine": "bippy-1.2.0"
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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-2023-53372",
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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": "2026-01-14T18:53:52.812844Z"
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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-787",
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"description": "CWE-787 Out-of-bounds Write"
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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": "2026-01-14T19:03:02.976Z"
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}
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}
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]
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}
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} |