{"id":"CVE-2024-47491","state":"PUBLISHED","title":"Junos OS and Junos OS Evolved: Receipt of a specific malformed BGP path attribute leads to an RPD crash","description":"An Improper Handling of Exceptional Conditions vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to cause Denial of Service (DoS).\n\nWhen a BGP UPDATE with malformed path attribute is received over an established BGP session, rpd crashes and restarts. \n\nContinuous receipt of a BGP UPDATE with a specifically malformed path attribute will create a sustained Denial of Service (DoS) condition for impacted devices. While this issue affects systems running 32-bit and 64-bit systems, the probability of impact on 64-bit system is extremely low. \nAccording to  KB25803  https://supportportal.juniper.net/s/article/Junos-How-to-check-if-Junos-OS-is-64-or-32-bit-on-a-router , customers can confirm 32-bit or 64-bit system via the ' show version detail ' command:\n\n\n\n     lab@router> show version detail| match 32\n     JUNOS 32-bit kernel Software Suite \n\n     lab@router> show version detail| match 64\n     JUNOS 64-bit kernel Software Suite \n\n\nThis issue affects:\n\n Juniper Networks Junos OS: \n\n  *  All versions before 21.4R3-S8, \n  *  from 22.2 before 22.2R3-S4, \n  *  from 22.4 before 22.4R3-S3, \n  *  from 23.2 before 23.2R2-S1, \n  *  from 23.4 before 23.4R1-S2, 23.4R2.\n\n\n Juniper Networks Junos OS Evolved:   *  All versions before 21.4R3-S8-EVO, \n  *  from 22.2 before 22.2R3-S4-EVO, \n  *  from 22.4 before 22.4R3-S3-EVO,\n  *  from 23.2 before 23.2R2-S1-EVO, \n  *  from 23.4 before 23.4R1-S2-EVO, 23.4R2-EVO.","publishedAt":"2024-10-11T15:23:08.762Z","updatedAt":"2024-10-22T19:12:09.407Z","severity":{"score":8.2,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L","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":"21.4R3-S8","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S4","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S3","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-S1","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4R1-S2, 23.4R2","versionType":"semver"}]},{"vendor":"Juniper Networks","product":"Junos OS Evolved","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.4R3-S8-EVO","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S4-EVO","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S3-EVO","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-S1-EVO","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4R1-S2-EVO, 23.4R2-EVO","versionType":"semver"}]}],"references":["https://supportportal.juniper.net/"],"weaknesses":["CWE-755"],"ingestedAt":"2026-10-29T20:07:56.516Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/47xxx/CVE-2024-47491.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-47491","state":"PUBLISHED","datePublished":"2024-10-11T15:23:08.762Z","dateUpdated":"2024-10-22T19:12:09.407Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2024-09-25T15:26:52.608Z"},"containers":{"cna":{"title":"Junos OS and Junos OS Evolved: Receipt of a specific malformed BGP path attribute leads to an RPD crash","descriptions":[{"lang":"en","value":"An Improper Handling of Exceptional Conditions vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to cause Denial of Service (DoS).\n\nWhen a BGP UPDATE with malformed path attribute is received over an established BGP session, rpd crashes and restarts. \n\nContinuous receipt of a BGP UPDATE with a specifically malformed path attribute will create a sustained Denial of Service (DoS) condition for impacted devices. While this issue affects systems running 32-bit and 64-bit systems, the probability of impact on 64-bit system is extremely low. \nAccording to  KB25803  https://supportportal.juniper.net/s/article/Junos-How-to-check-if-Junos-OS-is-64-or-32-bit-on-a-router , customers can confirm 32-bit or 64-bit system via the ' show version detail ' command:\n\n\n\n     lab@router> show version detail| match 32\n     JUNOS 32-bit kernel Software Suite \n\n     lab@router> show version detail| match 64\n     JUNOS 64-bit kernel Software Suite \n\n\nThis issue affects:\n\n Juniper Networks Junos OS: \n\n  *  All versions before 21.4R3-S8, \n  *  from 22.2 before 22.2R3-S4, \n  *  from 22.4 before 22.4R3-S3, \n  *  from 23.2 before 23.2R2-S1, \n  *  from 23.4 before 23.4R1-S2, 23.4R2.\n\n\n Juniper Networks Junos OS Evolved:   *  All versions before 21.4R3-S8-EVO, \n  *  from 22.2 before 22.2R3-S4-EVO, \n  *  from 22.4 before 22.4R3-S3-EVO,\n  *  from 23.2 before 23.2R2-S1-EVO, \n  *  from 23.4 before 23.4R1-S2-EVO, 23.4R2-EVO."}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.4R3-S8","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S4","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S3","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-S1","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4R1-S2, 23.4R2","versionType":"semver"}]},{"vendor":"Juniper Networks","product":"Junos OS Evolved","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.4R3-S8-EVO","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S4-EVO","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S3-EVO","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2-S1-EVO","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4R1-S2-EVO, 23.4R2-EVO","versionType":"semver"}]}],"references":[{"url":"https://supportportal.juniper.net/","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/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":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"HIGH","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.2,"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:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L","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":"2024-10-17T18:02:14.393Z"},"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"To be exposed to this issue a minimal BGP configuration like the following is required:<br><br><tt>[ protocols bgp group &lt;name&gt; neighbor ... ]</tt><br>"}],"value":"To be exposed to this issue a minimal BGP configuration like the following is required:\n\n[ protocols bgp group <name> neighbor ... ]"}],"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><span style=\"background-color: rgb(255, 255, 255);\">Junos OS: 21.4R3-S8, 22.2R3-S4, 22.4R3-S3, 23.2R2-S1, 23.4R1-S2, 23.4R2, 24.2R1, and all subsequent releases.</span> <br><br>Junos OS Evolved: 21.4R3-S8-EVO, 22.2R3-S4-EVO, 22.4R3-S3-EVO, 23.2R2-S1-EVO, 23.4R1-S2-EVO, 23.4R2-EVO, 24.2R1-EVO,&nbsp;and all subsequent releases.<br><br>"}],"value":"The following software releases have been updated to resolve this specific issue:\n\nJunos OS: 21.4R3-S8, 22.2R3-S4, 22.4R3-S3, 23.2R2-S1, 23.4R1-S2, 23.4R2, 24.2R1, and all subsequent releases. \n\nJunos OS Evolved: 21.4R3-S8-EVO, 22.2R3-S4-EVO, 22.4R3-S3-EVO, 23.2R2-S1-EVO, 23.4R1-S2-EVO, 23.4R2-EVO, 24.2R1-EVO, and all subsequent releases."}],"source":{"advisory":"JSA88116","defect":["1797147"],"discovery":"INTERNAL"},"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":"21.4r3-s8","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2r3-s4","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4r3-s3","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2r2-s1","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4r1-s2","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4r2","versionType":"semver"}],"cpes":["cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*"]},{"vendor":"juniper","product":"junos_evolved","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.4r3-s8-evo","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2r3-s4-evo","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4r3-s3-evo","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2r2-s1-evo","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4r1-s2-evo","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4r2-evo","versionType":"semver"}],"cpes":["cpe:2.3:o:juniper:junos_evolved:*:*:*:*:*:*:*:*"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-10-22T19:11:49.343466Z","id":"CVE-2024-47491","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-10-22T19:12:09.407Z"}}]}}}