{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-39519","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","state":"PUBLISHED","assignerShortName":"juniper","dateReserved":"2024-06-25T15:12:53.239Z","datePublished":"2024-07-11T15:55:37.087Z","dateUpdated":"2024-08-02T04:26:15.781Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","platforms":["ACX7000 Series"],"product":"Junos OS Evolved","vendor":"Juniper Networks","versions":[{"status":"affected","version":"22.1-EVO","versionType":"semver"},{"lessThan":"22.1R1-EVO","status":"unaffected","version":"0","versionType":"semver"},{"status":"affected","version":"22.2-EVO","versionType":"custom"},{"status":"affected","version":"22.3-EVO","versionType":"custom"},{"lessThan":"22.4R2-EVO","status":"affected","version":"22.4-EVO","versionType":"semver"}]}],"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>To be potentially exposed to this issue the device must be configured as follows:</p><tt>[ routing-instances evpna instance-type evpn ]<br>[ routing-instances evpna routing-interface irb.0 ]</tt>"}],"value":"To be potentially exposed to this issue the device must be configured as follows:\n\n[ routing-instances evpna instance-type evpn ]\n[ routing-instances evpna routing-interface irb.0 ]"}],"datePublic":"2024-07-10T16:00:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated, adjacent attacker to cause a \n\n<span style=\"background-color: rgb(255, 255, 255);\">Denial-of-Service (DoS).</span><p>\n\n<span style=\"background-color: rgb(255, 255, 255);\">On all ACX 7000 Series platforms running \n\n<span style=\"background-color: rgb(255, 255, 255);\">Junos OS Evolved, and configured with IRBs</span>, if a Customer Edge device (CE) device is dual homed to two Provider Edge devices (PE) a traffic loop will occur when the CE sends multicast packets. This issue can be triggered by IPv4 and IPv6 traffic.</span><span style=\"background-color: rgb(255, 255, 255);\"><br></span></p><p>This issue affects Junos OS Evolved:&nbsp;</p><p>All versions from 22.2R1-EVO and later versions before 22.4R2-EVO,</p><p><span style=\"background-color: var(--wht);\">This issue does not affect Junos OS Evolved versions before 22.1R1-EVO.</span><br></p>"}],"value":"An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated, adjacent attacker to cause a \n\nDenial-of-Service (DoS).\n\nOn all ACX 7000 Series platforms running \n\nJunos OS Evolved, and configured with IRBs, if a Customer Edge device (CE) device is dual homed to two Provider Edge devices (PE) a traffic loop will occur when the CE sends multicast packets. This issue can be triggered by IPv4 and IPv6 traffic.\n\n\nThis issue affects Junos OS Evolved: \n\nAll versions from 22.2R1-EVO and later versions before 22.4R2-EVO,\n\nThis issue does not affect Junos OS Evolved versions before 22.1R1-EVO."}],"exploits":[{"lang":"eng","supportingMedia":[{"base64":false,"type":"text/html","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.&nbsp;However, multiple occurrences of this issue have been reported in production."}],"value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability. However, multiple occurrences of this issue have been reported in production."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/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":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"ADJACENT","baseScore":7.1,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:A/AC:L/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-754","description":"CWE-754 Improper Check for Unusual or Exceptional Conditions","lang":"eng","type":"CWE"}]}],"providerMetadata":{"orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","shortName":"juniper","dateUpdated":"2024-07-11T15:55:37.087Z"},"references":[{"tags":["vendor-advisory"],"url":"https://supportportal.juniper.net/JSA82983"}],"solutions":[{"lang":"eng","supportingMedia":[{"base64":false,"type":"text/html","value":"The following software releases have been updated to resolve this specific issue: 22.4R2-EVO, 23.2R1-EVO, and all subsequent releases.<br>"}],"value":"The following software releases have been updated to resolve this specific issue: 22.4R2-EVO, 23.2R1-EVO, and all subsequent releases."}],"source":{"advisory":"JSA82983","defect":["1691134"],"discovery":"USER"},"title":"Junos OS Evolved: ACX 7000 Series: Multicast traffic is looped in a multihoming EVPN MPLS scenario","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":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-07-11T18:57:45.856923Z","id":"CVE-2024-39519","options":[{"Exploitation":"none"},{"Automatable":"no"},{"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":"2024-07-11T18:57:54.595Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T04:26:15.781Z"},"title":"CVE Program Container","references":[{"tags":["vendor-advisory","x_transferred"],"url":"https://supportportal.juniper.net/JSA82983"}]}]}}