160 lines
6.0 KiB
JSON
160 lines
6.0 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-2026-12244",
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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": "2026-06-15T06:46:44.866Z",
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"datePublished": "2026-06-25T05:24:08.548Z",
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"dateUpdated": "2026-06-25T12:45:34.403Z"
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},
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"containers": {
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"cna": {
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"title": "Heap overflow and crash with crafted SVCB RR",
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"references": [
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{
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"tags": [
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"vendor-advisory"
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],
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"url": "https://www.nlnetlabs.nl/downloads/nsd/CVE-2026-12244.txt"
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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 4.14.3."
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}
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],
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"affected": [
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{
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"defaultStatus": "unaffected",
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"product": "NSD",
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"vendor": "NLnet Labs",
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"versions": [
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{
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"version": "4.14.0",
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"lessThan": "4.14.3",
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"status": "affected",
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"versionType": "semver"
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}
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]
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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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"type": "finder",
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"value": "Qifan Zhang from Palo Alto Networks"
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}
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],
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"timeline": [
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{
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"lang": "en",
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"time": "2026-05-28T00:00:00.000Z",
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"value": "Issue reported by Qifan Zhang"
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},
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{
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"lang": "en",
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"time": "2026-06-12T00:00:00.000Z",
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"value": "NLnet Labs shares patch"
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},
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{
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"lang": "en",
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"time": "2026-06-15T00:00:00.000Z",
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"value": "Qifan Zhang verifies patch"
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},
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{
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"lang": "en",
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"time": "2026-06-25T00:00:00.000Z",
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"value": "Fix released with version 4.14.3"
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}
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],
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"datePublic": "2026-06-25T00:00:00.000Z",
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"descriptions": [
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{
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"lang": "en",
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"value": "If NSD is configured as secondary for a zone, the primary of that zone can crash NSD with an AXFR containing a DNS message with a special crafted SVCB RR with an rdata size of 65512, that let's an (uint16_t) variable that is used to allocate space needed for the RR wrap (because total size > 65535), causing a heap overflow. The attacker can perform a controlled (RCE class) head write of up to 65509 bytes"
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}
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],
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"metrics": [
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{
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"scenarios": [
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{
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"lang": "en",
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"value": "Processing of a zonefile containing a crafted SVCB. These can be provided by a trusted primary"
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}
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],
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"cvssV4_0": {
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"baseScore": 8.7,
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
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"version": "4.0"
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},
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"format": "CVSS"
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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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"cweId": "CWE-190",
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"description": "CWE-190: Integer Overflow or Wraparound",
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"lang": "en",
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"type": "CWE"
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},
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{
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"cweId": "CWE-122",
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"description": "CWE-122: Heap-based Buffer Overflow",
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"lang": "en",
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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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"x_generator": {
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"engine": "cvelib 1.8.0"
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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": "2026-06-25T05:24:08.548Z"
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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": "2026-06-25T12:45:15.927329Z",
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"id": "CVE-2026-12244",
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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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"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": "2026-06-25T12:45:34.403Z"
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}
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}
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]
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}
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} |