179 lines
8.2 KiB
JSON
179 lines
8.2 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-2026-94029",
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"assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
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"state": "PUBLISHED",
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"assignerShortName": "apache",
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"dateReserved": "2026-09-19T17:17:00.525Z",
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"datePublished": "2026-09-30T09:35:51.711Z",
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"dateUpdated": "2026-09-30T19:42:56.102Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
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"shortName": "apache",
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"dateUpdated": "2026-09-30T09:35:51.711Z"
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},
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"title": "Apache MINA SSHD: Memory exhaustion in SFTP v6 check-file-name/check-file-handle extension",
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"problemTypes": [
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{
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"descriptions": [
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{
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"description": "CWE-770 Allocation of resources without limits or throttling",
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"lang": "en",
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"cweId": "CWE-770",
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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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"source": {
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"discovery": "EXTERNAL"
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},
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"affected": [
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{
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"vendor": "Apache Software Foundation",
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"product": "Apache MINA SSHD",
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"packageURL": "pkg:maven/org.apache.sshd/sshd-sftp",
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"versions": [
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{
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"status": "affected",
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"version": "1.0.0",
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"lessThan": "2.20.0",
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"versionType": "maven"
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},
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{
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"status": "affected",
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"version": "3.0.0-M1",
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"lessThan": "3.0.0-M6",
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"versionType": "maven"
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}
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],
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"defaultStatus": "unaffected",
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"collectionURL": "https://repo.maven.apache.org/maven2",
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"packageName": "org.apache.sshd:sshd-sftp"
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}
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],
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"descriptions": [
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{
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"value": "Server-side memory exhaustion in Apache MINA SSHD 1.0.0 to 2.19.0 and 3.0.0-M1 to 3.0.0-M5, component sshd-sftp, in the SFTP v6 check-file-name/check-file-handle extension. Apache MINA SSHD is a Java library for client-side and server-side SSH.\n\n\n\n\nUsing a very small \"block size\" (for instance 256, which is the minimum) on a huge file generates many (file size / block size) hashes. The resulting SFTP reply message was accumulated fully in memory server-side, which could, with a suitably large (possibly sparse) file exhaust the server-side memory, taking down the server.\n\n\n\n\nUsers are recommended to upgrade to version 2.20.0 or 3.0.0-M6, which fix this issue by imposing a maximum limit on the size of the reply. Many SFTP implementations have a general limit on the size of SFTP messages anyway; typically 256kB as in OpenSSH or also in Apache MINA SSHD.",
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"lang": "en",
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"supportingMedia": [
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{
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"type": "text/html",
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"value": "<div>Server-side memory exhaustion in Apache MINA SSHD 1.0.0 to 2.19.0 and 3.0.0-M1 to 3.0.0-M5, component sshd-sftp, in the SFTP v6 check-file-name/check-file-handle extension. Apache MINA SSHD is a Java library for client-side and server-side SSH.</div><div><br></div><div>Using a very small \"block size\" (for instance 256, which is the minimum) on a huge file generates many (file size / block size) hashes. The resulting SFTP reply message was accumulated fully in memory server-side, which could, with a suitably large (possibly sparse) file exhaust the server-side memory, taking down the server.</div><div><br></div>Users are recommended to upgrade to version 2.20.0 or 3.0.0-M6, which fix this issue by imposing a maximum limit on the size of the reply. Many SFTP implementations have a general limit on the size of SFTP messages anyway; typically 256kB as in OpenSSH or also in Apache MINA SSHD."
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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://lists.apache.org/thread.html/ytbl4rwby62xl7llm3wp7k975wwdx99t",
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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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"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": "GENERAL"
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}
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],
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"format": "CVSS",
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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": "LOW",
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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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"baseSeverity": "MEDIUM",
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"baseScore": 6.5,
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/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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"other": {
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"type": "Textual description of severity",
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"content": {
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"text": "moderate"
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}
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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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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"value": "Ho1aAs <xxy010605@gmail.com>",
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"type": "finder"
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}
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],
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"x_generator": {
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"engine": "Vulnogram 1.0.3"
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}
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},
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"adp": [
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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": "http://www.openwall.com/lists/oss-security/2026/09/29/37"
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}
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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": "2026-09-30T10:14:18.127Z"
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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": "2026-09-30T19:42:43.742304Z",
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"id": "CVE-2026-94029",
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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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"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": "2026-09-30T19:42:56.102Z"
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}
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}
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]
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}
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} |