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vuln-cve/data/2024/21xxx/CVE-2024-21604.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"cveMetadata": {
"cveId": "CVE-2024-21604",
"assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
"state": "PUBLISHED",
"assignerShortName": "juniper",
"dateReserved": "2023-12-27T19:38:25.707Z",
"datePublished": "2024-01-12T00:54:36.512Z",
"dateUpdated": "2025-06-03T14:05:41.706Z"
},
"containers": {
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"defaultStatus": "unaffected",
"product": "Junos OS Evolved",
"vendor": "Juniper Networks",
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"lessThan": "20.4R3-S7-EVO",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "21.2*-EVO",
"status": "affected",
"version": "21.2-EVO",
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{
"lessThan": "21.4R3-S5-EVO",
"status": "affected",
"version": "21.4-EVO",
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"status": "affected",
"version": "22.1-EVO",
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{
"lessThan": "22.2R3-EVO",
"status": "affected",
"version": "22.2-EVO",
"versionType": "semver"
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{
"lessThan": "22.3R2-EVO",
"status": "affected",
"version": "22.3-EVO",
"versionType": "semver"
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"status": "affected",
"version": "22.4-EVO",
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"datePublic": "2024-01-10T17:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
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"value": "\n\n<p>An Allocation of Resources Without Limits or Throttling vulnerability in the kernel of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).</p><p>If a high rate of specific valid packets are processed by the routing engine (RE) this will lead to a loss of connectivity of the RE with other components of the chassis and thereby a complete and persistent system outage. Please note that a carefully designed lo0 firewall filter will block or limit these packets which should prevent this issue from occurring.</p><p>The following log messages can be seen when this issue occurs:</p><code>&lt;host&gt; kernel: nf_conntrack: nf_conntrack: table full, dropping packet</code><br><p>This issue affects Juniper Networks Junos OS Evolved:</p><p></p><ul><li>All versions earlier than 20.4R3-S7-EVO;</li><li>21.2R1-EVO and later versions;</li><li>21.4-EVO versions earlier than 21.4R3-S5-EVO;</li><li>22.1-EVO versions earlier than 22.1R3-S2-EVO;</li><li>22.2-EVO versions earlier than 22.2R3-EVO;</li><li>22.3-EVO versions earlier than 22.3R2-EVO;</li><li>22.4-EVO versions earlier than 22.4R2-EVO.</li></ul><p></p>\n\n"
}
],
"value": "\nAn Allocation of Resources Without Limits or Throttling vulnerability in the kernel of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).\n\nIf a high rate of specific valid packets are processed by the routing engine (RE) this will lead to a loss of connectivity of the RE with other components of the chassis and thereby a complete and persistent system outage. Please note that a carefully designed lo0 firewall filter will block or limit these packets which should prevent this issue from occurring.\n\nThe following log messages can be seen when this issue occurs:\n\n<host> kernel: nf_conntrack: nf_conntrack: table full, dropping packet\nThis issue affects Juniper Networks Junos OS Evolved:\n\n\n\n * All versions earlier than 20.4R3-S7-EVO;\n * 21.2R1-EVO and later versions;\n * 21.4-EVO versions earlier than 21.4R3-S5-EVO;\n * 22.1-EVO versions earlier than 22.1R3-S2-EVO;\n * 22.2-EVO versions earlier than 22.2R3-EVO;\n * 22.3-EVO versions earlier than 22.3R2-EVO;\n * 22.4-EVO versions earlier than 22.4R2-EVO.\n\n\n\n\n\n\n"
}
],
"exploits": [
{
"lang": "en",
"supportingMedia": [
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"type": "text/html",
"value": "<p>Juniper SIRT is not aware of any malicious exploitation of this vulnerability.</p>"
}
],
"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\n\n"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
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"lang": "en",
"value": "GENERAL"
}
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],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
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{
"descriptions": [
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"description": "Denial of Service (DoS)",
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"providerMetadata": {
"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
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"dateUpdated": "2024-01-12T00:54:36.512Z"
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"references": [
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"tags": [
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"url": "https://supportportal.juniper.net/JSA75745"
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"tags": [
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"url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "<p>The following software releases have been updated to resolve this specific issue: Junos OS Evolved 20.4R3-S7-EVO, 21.4R3-S5-EVO, 22.1R3-S2-EVO, 22.2R3-EVO, 22.3R2-EVO, 22.4R2-EVO, 23.2R1-EVO, and all subsequent releases.</p>"
}
],
"value": "The following software releases have been updated to resolve this specific issue: Junos OS Evolved 20.4R3-S7-EVO, 21.4R3-S5-EVO, 22.1R3-S2-EVO, 22.2R3-EVO, 22.3R2-EVO, 22.4R2-EVO, 23.2R1-EVO, and all subsequent releases.\n\n"
}
],
"source": {
"advisory": "JSA75745",
"defect": [
"1663122",
"1712937"
],
"discovery": "USER"
},
"timeline": [
{
"lang": "en",
"time": "2024-01-10T17:00:00.000Z",
"value": "Initial Publication"
}
],
"title": "Junos OS Evolved: A high rate of specific traffic will cause a complete system outage",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "<p>To prevent the device from receiving high rates of valid traffic please configure firewall filters to block unexpected and even throttle expected traffic.</p>"
}
],
"value": "To prevent the device from receiving high rates of valid traffic please configure firewall filters to block unexpected and even throttle expected traffic.\n\n"
}
],
"x_generator": {
"engine": "Vulnogram 0.1.0-av217"
}
},
"adp": [
{
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2024-08-01T22:27:35.509Z"
},
"title": "CVE Program Container",
"references": [
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"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://supportportal.juniper.net/JSA75745"
},
{
"tags": [
"technical-description",
"x_transferred"
],
"url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L"
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},
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2025-05-08T15:43:13.507515Z",
"id": "CVE-2024-21604",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2025-06-03T14:05:41.706Z"
}
}
]
}
}
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