176 lines
7.0 KiB
JSON
176 lines
7.0 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.1",
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"cveMetadata": {
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"cveId": "CVE-2023-2829",
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"assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
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"state": "PUBLISHED",
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"assignerShortName": "isc",
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"dateReserved": "2023-05-22T07:57:43.061Z",
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"datePublished": "2023-06-21T16:26:24.932Z",
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"dateUpdated": "2025-02-13T16:48:38.687Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "404fd4d2-a609-4245-b543-2c944a302a22",
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"shortName": "isc",
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"dateUpdated": "2023-07-03T15:06:24.821Z"
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},
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"title": "Malformed NSEC records can cause named to terminate unexpectedly when synth-from-dnssec is enabled",
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"datePublic": "2023-06-21T00:00:00.000Z",
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"affected": [
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{
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"vendor": "ISC",
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"product": "BIND 9",
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"versions": [
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{
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"version": "9.16.8-S1",
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"lessThanOrEqual": "9.16.41-S1",
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"status": "affected",
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"versionType": "custom"
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},
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{
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"version": "9.18.11-S1",
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"lessThanOrEqual": "9.18.15-S1",
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"status": "affected",
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"versionType": "custom"
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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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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"availabilityImpact": "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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"baseScore": 7.5,
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"baseSeverity": "HIGH"
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}
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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": "A `named` instance configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option (`synth-from-dnssec`) enabled can be remotely terminated using a zone with a malformed NSEC record.\nThis issue affects BIND 9 versions 9.16.8-S1 through 9.16.41-S1 and 9.18.11-S1 through 9.18.15-S1."
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}
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],
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"impacts": [
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{
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"descriptions": [
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{
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"lang": "en",
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"value": "By sending specific queries to the resolver, an attacker can cause `named` to terminate unexpectedly.\n\nNote that the BIND configuration option `synth-from-dnssec` is enabled by default in all versions of BIND 9.18 and 9.18-S and newer. In earlier versions of BIND that had this option available, it was disabled unless activated explicitly in `named.conf`."
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}
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]
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}
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],
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"workarounds": [
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{
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"lang": "en",
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"value": "Setting `synth-from-dnssec` to `no` prevents the problem."
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}
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],
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"exploits": [
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{
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"lang": "en",
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"value": "We are not aware of any active exploits."
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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": "Upgrade to the patched release most closely related to your current version of BIND 9: 9.16.42-S1 or 9.18.16-S1."
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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": "ISC would like to thank Greg Kuechle from SaskTel for bringing this vulnerability to our attention."
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}
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],
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"references": [
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{
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"url": "https://kb.isc.org/docs/cve-2023-2829",
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"name": "CVE-2023-2829",
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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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"url": "https://security.netapp.com/advisory/ntap-20230703-0010/"
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}
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],
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"source": {
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"discovery": "EXTERNAL"
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}
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},
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"adp": [
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{
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2024-08-02T06:33:05.969Z"
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},
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://kb.isc.org/docs/cve-2023-2829",
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"name": "CVE-2023-2829",
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"tags": [
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"vendor-advisory",
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"x_transferred"
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]
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},
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{
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"url": "https://security.netapp.com/advisory/ntap-20230703-0010/",
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"tags": [
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"x_transferred"
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]
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}
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]
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},
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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": "2024-12-06T18:34:26.527193Z",
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"id": "CVE-2023-2829",
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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": "2024-12-06T18:34:46.254Z"
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}
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}
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]
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}
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} |