{"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":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Junos OS Evolved","vendor":"Juniper Networks","versions":[{"lessThan":"20.4R3-S7-EVO","status":"affected","version":"0","versionType":"semver"},{"lessThan":"21.2*-EVO","status":"affected","version":"21.2-EVO","versionType":"semver"},{"lessThan":"21.4R3-S5-EVO","status":"affected","version":"21.4-EVO","versionType":"semver"},{"lessThan":"22.1R3-S2-EVO","status":"affected","version":"22.1-EVO","versionType":"semver"},{"lessThan":"22.2R3-EVO","status":"affected","version":"22.2-EVO","versionType":"semver"},{"lessThan":"22.3R2-EVO","status":"affected","version":"22.3-EVO","versionType":"semver"},{"lessThan":"22.4R2-EVO","status":"affected","version":"22.4-EVO","versionType":"semver"}]}],"datePublic":"2024-01-10T17:00:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","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":[{"base64":false,"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":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","description":"CWE-770 Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}]},{"descriptions":[{"description":"Denial of Service (DoS)","lang":"en"}]}],"providerMetadata":{"orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","shortName":"juniper","dateUpdated":"2024-01-12T00:54:36.512Z"},"references":[{"tags":["vendor-advisory"],"url":"https://supportportal.juniper.net/JSA75745"},{"tags":["technical-description"],"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":[{"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"}]},{"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"}}]}}