{"id":"CVE-2024-39547","state":"PUBLISHED","title":"Junos OS and Junos OS Evolved: cRPD: Receipt of crafted TCP traffic can trigger high CPU utilization","description":"An Improper Handling of Exceptional Conditions vulnerability in the rpd-server of Juniper Networks Junos OS and Junos OS Evolved within cRPD allows an unauthenticated network-based attacker sending crafted TCP traffic to the routing engine (RE) to cause a CPU-based Denial of Service (DoS).\n\nIf specially crafted TCP traffic is received by the control plane, or a TCP session terminates unexpectedly, it will cause increased control plane CPU utilization by the rpd-server process.\n\nWhile not explicitly required, the impact is more severe when RIB sharding is enabled.\n\nTask accounting shows unexpected reads by the RPD Server jobs for shards:\n\nuser@junos> show task accounting detail\n...\nread:RPD Server.0.0.0.0+780.192.168.0.78+48886 TOT:00000003.00379787 MAX:00000000.00080516 RUNS: 233888\\\nread:RPD Server.0.0.0.0+780.192.168.0.78+49144 TOT:00000004.00007565 MAX:00000000.00080360 RUNS: 233888\\\nread:RPD Server.0.0.0.0+780.192.168.0.78+49694 TOT:00000003.00600584 MAX:00000000.00080463 RUNS: 233888\\\nread:RPD Server.0.0.0.0+780.192.168.0.78+50246 TOT:00000004.00346998 MAX:00000000.00080338 RUNS: 233888\\\n\n\n\nThis issue affects:\n\nJunos OS with cRPD: \n\n  *  All versions before 21.2R3-S8, \n  *  21.4 before 21.4R3-S7, \n  *  22.1 before 22.1R3-S6, \n  *  22.2 before 22.2R3-S4, \n  *  22.3 before 22.3R3-S3, \n  *  22.4 before 22.4R3-S2, \n  *  23.2 before 23.2R2-S2, \n  *  24.2 before 24.2R2; \n\n\nJunos OS Evolved with cRPD: \n\n  *  All versions before 21.4R3-S7-EVO, \n  *  22.2 before 22.2R3-S4-EVO, \n  *  22.3 before 22.3R3-S3-EVO, \n  *  22.4 before 22.4R3-S2-EVO, \n  *  23.2 before 23.2R2-EVO.","publishedAt":"2024-10-11T15:20:45.121Z","updatedAt":"2024-10-11T18:58:50.795Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"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/AU:Y/R:U","source":"juniper"},"assigner":"juniper","products":["Juniper Networks Junos OS","Juniper Networks Junos OS Evolved"],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.2R3-S8","versionType":"semver"},{"version":"21.4","status":"affected","lessThan":"21.4R3-S7","versionType":"semver"},{"version":"22.1","status":"affected","lessThan":"22.1R3-S6","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S4","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3R3-S3","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S2","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-S2","versionType":"semver"},{"version":"24.2","status":"affected","lessThan":"24.2R2","versionType":"semver"}],"platforms":["cRPD"]},{"vendor":"Juniper Networks","product":"Junos OS Evolved","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.4R3-S7-EVO","versionType":"semver"},{"version":"22.2-EVO","status":"affected","lessThan":"22.2R3-S4-EVO","versionType":"semver"},{"version":"22.3-EVO","status":"affected","lessThan":"22.3R3-S3-EVO","versionType":"semver"},{"version":"22.4-EVO","status":"affected","lessThan":"22.4R3-S2-EVO","versionType":"semver"},{"version":"23.2-EVO","status":"affected","lessThan":"23.2R2-EVO","versionType":"semver"}],"platforms":["cRPD"]}],"references":["https://supportportal.juniper.net/JSA88108"],"weaknesses":["CWE-755"],"ingestedAt":"2026-10-29T20:07:39.287Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/39xxx/CVE-2024-39547.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-39547","state":"PUBLISHED","datePublished":"2024-10-11T15:20:45.121Z","dateUpdated":"2024-10-11T18:58:50.795Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2024-06-25T15:12:53.245Z"},"containers":{"cna":{"title":"Junos OS and Junos OS Evolved: cRPD: Receipt of crafted TCP traffic can trigger high CPU utilization","descriptions":[{"lang":"en","value":"An Improper Handling of Exceptional Conditions vulnerability in the rpd-server of Juniper Networks Junos OS and Junos OS Evolved within cRPD allows an unauthenticated network-based attacker sending crafted TCP traffic to the routing engine (RE) to cause a CPU-based Denial of Service (DoS).\n\nIf specially crafted TCP traffic is received by the control plane, or a TCP session terminates unexpectedly, it will cause increased control plane CPU utilization by the rpd-server process.\n\nWhile not explicitly required, the impact is more severe when RIB sharding is enabled.\n\nTask accounting shows unexpected reads by the RPD Server jobs for shards:\n\nuser@junos> show task accounting detail\n...\nread:RPD Server.0.0.0.0+780.192.168.0.78+48886 TOT:00000003.00379787 MAX:00000000.00080516 RUNS: 233888\\\nread:RPD Server.0.0.0.0+780.192.168.0.78+49144 TOT:00000004.00007565 MAX:00000000.00080360 RUNS: 233888\\\nread:RPD Server.0.0.0.0+780.192.168.0.78+49694 TOT:00000003.00600584 MAX:00000000.00080463 RUNS: 233888\\\nread:RPD Server.0.0.0.0+780.192.168.0.78+50246 TOT:00000004.00346998 MAX:00000000.00080338 RUNS: 233888\\\n\n\n\nThis issue affects:\n\nJunos OS with cRPD: \n\n  *  All versions before 21.2R3-S8, \n  *  21.4 before 21.4R3-S7, \n  *  22.1 before 22.1R3-S6, \n  *  22.2 before 22.2R3-S4, \n  *  22.3 before 22.3R3-S3, \n  *  22.4 before 22.4R3-S2, \n  *  23.2 before 23.2R2-S2, \n  *  24.2 before 24.2R2; \n\n\nJunos OS Evolved with cRPD: \n\n  *  All versions before 21.4R3-S7-EVO, \n  *  22.2 before 22.2R3-S4-EVO, \n  *  22.3 before 22.3R3-S3-EVO, \n  *  22.4 before 22.4R3-S2-EVO, \n  *  23.2 before 23.2R2-EVO."}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.2R3-S8","versionType":"semver"},{"version":"21.4","status":"affected","lessThan":"21.4R3-S7","versionType":"semver"},{"version":"22.1","status":"affected","lessThan":"22.1R3-S6","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S4","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3R3-S3","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S2","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-S2","versionType":"semver"},{"version":"24.2","status":"affected","lessThan":"24.2R2","versionType":"semver"}],"platforms":["cRPD"]},{"vendor":"Juniper Networks","product":"Junos OS Evolved","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.4R3-S7-EVO","versionType":"semver"},{"version":"22.2-EVO","status":"affected","lessThan":"22.2R3-S4-EVO","versionType":"semver"},{"version":"22.3-EVO","status":"affected","lessThan":"22.3R3-S3-EVO","versionType":"semver"},{"version":"22.4-EVO","status":"affected","lessThan":"22.4R3-S2-EVO","versionType":"semver"},{"version":"23.2-EVO","status":"affected","lessThan":"23.2R2-EVO","versionType":"semver"}],"platforms":["cRPD"]}],"references":[{"url":"https://supportportal.juniper.net/JSA88108","tags":["vendor-advisory"]}],"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"}]},{"cvssV4_0":{"Automatable":"YES","Recovery":"USER","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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/AU:Y/R:U","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-755","description":"CWE-755 Improper Handling of Exceptional Conditions","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"juniper","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateUpdated":"2024-10-11T15:20:45.121Z"},"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"rpd-server is enabled by default in cRPD. No specific configuration is required to be vulnerable to this issue.<br><br>BGP RIB sharding is enabled using the following configuration:<br><br><tt>[set system processes routing bgp rib-sharding]</tt>"}],"value":"rpd-server is enabled by default in cRPD. No specific configuration is required to be vulnerable to this issue.\n\nBGP RIB sharding is enabled using the following configuration:\n\n[set system processes routing bgp rib-sharding]"}],"datePublic":"2024-10-09T16:00:00.000Z","exploits":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"The following software releases have been updated to resolve this specific issue:<br><br>Junos OS 21.2R3-S8, 21.4R3-S7, 22.1R3-S6, 22.2R3-S4, 22.3R3-S3, 22.4R3-S2, 23.2R2-S2, 23.4R1, and all subsequent releases.<br>Junos OS Evolved 21.4R3-S7-EVO, 22.2R3-S4-EVO, 22.3R3-S3-EVO, 22.4R3-S2-EVO, 23.2R2-EVO, 23.4R1-EVO, and all subsequent releases.<br><br>"}],"value":"The following software releases have been updated to resolve this specific issue:\n\nJunos OS 21.2R3-S8, 21.4R3-S7, 22.1R3-S6, 22.2R3-S4, 22.3R3-S3, 22.4R3-S2, 23.2R2-S2, 23.4R1, and all subsequent releases.\nJunos OS Evolved 21.4R3-S7-EVO, 22.2R3-S4-EVO, 22.3R3-S3-EVO, 22.4R3-S2-EVO, 23.2R2-EVO, 23.4R1-EVO, and all subsequent releases."}],"source":{"advisory":"JSA88108","defect":["1765417"],"discovery":"USER"},"workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"There are no known workarounds for this issue."}],"value":"There are no known workarounds for this issue."}],"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"juniper","product":"junos","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.2r3-s8","versionType":"semver"},{"version":"21.4","status":"affected","lessThan":"21.4r3-s7","versionType":"semver"},{"version":"22.1","status":"affected","lessThan":"22.1r3-s6","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2r3-s4","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3r3-s3","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4r3-s2","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2r2-s2","versionType":"semver"},{"version":"24.2","status":"affected","lessThan":"24.2r2","versionType":"semver"}],"cpes":["cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*"]},{"vendor":"juniper","product":"junos_evolved","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.4r3-s7-evo","versionType":"semver"},{"version":"22.2-evo","status":"affected","lessThan":"22.2r3-s4-evo","versionType":"semver"},{"version":"22.3-evo","status":"affected","lessThan":"22.3r3-s3-evo","versionType":"semver"},{"version":"22.4-evo","status":"affected","lessThan":"22.4r3-s2-evo","versionType":"semver"},{"version":"23.2-evo","status":"affected","lessThan":"23.2r2-evo","versionType":"custom"}],"cpes":["cpe:2.3:o:juniper:junos_evolved:*:*:*:*:*:*:*:*"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-10-11T18:03:59.293322Z","id":"CVE-2024-39547","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-10-11T18:58:50.795Z"}}]}}}