159 lines
5.9 KiB
JSON
159 lines
5.9 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-2026-97206",
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"assignerOrgId": "206fc3a0-e175-490b-9eaa-a5738056c9f6",
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"state": "PUBLISHED",
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"assignerShortName": "NLnet Labs",
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"dateReserved": "2026-10-14T09:16:14.090Z",
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"datePublished": "2026-10-21T08:57:41.106Z",
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"dateUpdated": "2026-10-29T19:08:32.470Z"
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},
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"containers": {
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"cna": {
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"title": "DNS-over-QUIC (DoQ) path-migration can lead to use-after-free on multi-threaded deployments.",
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"datePublic": "2026-10-21T00:00:00.000Z",
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"affected": [
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{
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"vendor": "NLnet Labs",
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"product": "Unbound",
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"versions": [
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{
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"version": "1.22.0",
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"status": "affected",
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"lessThan": "1.26.2",
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"versionType": "semver"
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}
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],
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"defaultStatus": "unaffected"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "NLnet Labs Unbound, 1.22.0 up to and including version 1.26.1, contains a DNS-over-QUIC (DoQ) lifetime bug reachable by a remote DoQ client under multi-threaded operation. A client-triggered QUIC path migration can enter stream/connection cleanup while a mesh reply still retains a pointer to the DoQ stream. Cleanup frees the DoQ stream and when the pending mesh reply later completes it dereferences a stale pointer leading to a crash."
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "compiled with DNS-over-QUIC support"
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}
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],
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"cvssV3_1": {
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"version": "3.1",
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"baseScore": 7.5,
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
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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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"cweId": "CWE-416",
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"description": "CWE-416: Use After Free",
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"type": "CWE"
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}
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]
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}
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],
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"solutions": [
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{
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"lang": "en",
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"value": "This issue is fixed starting with version 1.26.2"
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}
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],
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"timeline": [
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{
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"time": "2026-09-20T00:00:00.000Z",
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"lang": "en",
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"value": "Issue reported by Kunta Chu"
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},
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{
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"time": "2026-09-29T00:00:00.000Z",
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"lang": "en",
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"value": "NLnet Labs shares patch"
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},
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{
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"time": "2026-09-30T00:00:00.000Z",
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"lang": "en",
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"value": "Kunta Chu verifies patch"
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},
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{
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"time": "2026-10-21T00:00:00.000Z",
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"lang": "en",
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"value": "Fixes released with version 1.26.2"
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "Kunta Chu (Tsinghua University)",
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"type": "finder"
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},
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{
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"lang": "en",
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"value": "Jianjun Chen (Tsinghua University)",
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"type": "finder"
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}
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],
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"references": [
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{
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"url": "https://www.nlnetlabs.nl/downloads/unbound/CVE-2026-97206.txt",
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"tags": [
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"vendor-advisory"
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]
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}
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],
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"providerMetadata": {
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"orgId": "206fc3a0-e175-490b-9eaa-a5738056c9f6",
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"shortName": "NLnet Labs",
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"dateUpdated": "2026-10-21T08:57:41.106Z"
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},
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"x_generator": {
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"engine": "cvelib 1.8.0"
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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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"timestamp": "2026-10-29T19:08:11.587798Z",
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"id": "CVE-2026-97206",
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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": "yes"
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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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"role": "CISA Coordinator",
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"version": "2.0.3"
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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": "2026-10-29T19:08:32.470Z"
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}
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}
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]
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}
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} |