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PTX Series allows an unauthenticated, network based attacker to cause a Denial-of-Service (DoS).\\n\\nThis issue can occur in two scenarios:\\n\\n1. If a device, which is configured with SFLOW and ECMP, receives specific valid transit traffic, which is subject to sampling, the packetio process crashes, which in turn leads to an evo-aftman crash and causes the FPC to stop working until it is restarted. (This scenario is only applicable to PTX but not to ACX or MX.)\\n\\n2. If a device receives a malformed CFM packet on an interface configured with CFM, the packetio process crashes, which in turn leads to an evo-aftman crash and causes the FPC to stop working until it is restarted.\\u00a0Please note that the CVSS score is for the formally more severe issue 1.\\n\\nThe CVSS score for scenario 2. is: 6.5 (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)\\n\\n\\n\\n\\nThis issue affects Junos OS:\\n\\n\\n\\n  *  All versions before\\u00a021.2R3-S4,\\n  *  21.4 versions before 21.4R2,\\n  *  22.2 versions before 22.2R3-S2;\\u00a0\\n\\n\\n\\n\\nJunos OS Evolved:\\n\\n\\n\\n\\n  *  All versions before\\u00a021.2R3-S8-EVO,\\n  *  21.4 versions before 21.4R2-EVO.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"An Improper Validation of Syntactic Correctness of Input vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series with MPC10/11 or \u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003eLC9600\u003c/span\u003e, MX304, and Junos OS Evolved on ACX Series and PTX Series allows an unauthenticated, network based attacker to cause a Denial-of-Service (DoS).\u003cbr\u003e\u003cbr\u003eThis issue can occur in two scenarios:\u003cbr\u003e\u003cbr\u003e1. If a device, which is configured with SFLOW and ECMP, receives specific valid transit traffic, which is subject to sampling, the packetio process crashes, which in turn leads to an evo-aftman crash and causes the FPC to stop working until it is restarted. (This scenario is only applicable to PTX but not to ACX or MX.)\u003cbr\u003e\u003cbr\u003e2. If a device receives a malformed CFM packet on an interface configured with CFM, the packetio process crashes, which in turn leads to an evo-aftman crash and causes the FPC to stop working until it is restarted.\u0026nbsp;\u003cp\u003ePlease note that the CVSS score is for the formally more severe issue 1.\u003c/p\u003e\u003cp\u003eThe CVSS score for scenario 2. is: 6.5 (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)\u003c/p\u003e\u003cp\u003e\u003cbr\u003e\u003c/p\u003e\u003cp\u003eThis issue affects Junos OS:\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions before\u0026nbsp;\u003cspan style=\\\"background-color: var(--wht);\\\"\u003e21.2R3-S4,\u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\\\"background-color: var(--wht);\\\"\u003e21.4 versions before 21.4R2,\u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\\\"background-color: var(--wht);\\\"\u003e22.2 versions before 22.2R3-S2;\u0026nbsp;\u003c/span\u003e\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003cspan style=\\\"background-color: var(--wht);\\\"\u003eJunos OS Evolved:\u003c/span\u003e\u003cbr\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions before\u0026nbsp;\u003cspan style=\\\"background-color: var(--wht);\\\"\u003e21.2R3-S8-EVO,\u003c/span\u003e\u003c/li\u003e\u003cli\u003e21.4 versions before 21.4R2-EVO\u003cspan style=\\\"background-color: var(--wht);\\\"\u003e.\u003c/span\u003e\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"1286 Improper Validation of Syntactic Correctness of Input\"}]}], \"configurations\": [{\"lang\": \"en\", \"value\": \"To be exposed to this issue at least one of CFM or sampling needs to be configured:\\n\\n1. CFM:\\n\\n\\u00a0 [\\u00a0 protocols oam\\u00a0ethernet\\u00a0connectivity-fault-management\\u00a0maintenance-domain \u003cmd_name\u003e\\u00a0maintenance-association \u003cma_name\u003e\\u00a0mep \u003cnumber\u003e\\u00a0interface \u003cinterface\u003e ]\\nOR\\n\\u00a0 [\\u00a0 protocols oam ethernet connectivity-fault-management maintenance-domain \u003cmd_name\u003e interface \u003cinterface\u003e\\u00a0/ vlan \u003cvlan\u003e ]\\n\\n2. ECMP, sampling\\n\\n\\u00a0 [ \\n\\nprotocols sflow interfaces \u003cinterface\u003e\\n\\n ]\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"To be exposed to this issue at least one of CFM or sampling needs to be configured:\u003cbr\u003e\u003cbr\u003e1. CFM:\u003cbr\u003e\u003cbr\u003e\u0026nbsp; [\u0026nbsp; protocols oam\u0026nbsp;ethernet\u0026nbsp;connectivity-fault-management\u0026nbsp;maintenance-domain \u0026lt;md_name\u0026gt;\u0026nbsp;maintenance-association \u0026lt;ma_name\u0026gt;\u0026nbsp;mep \u0026lt;number\u0026gt;\u0026nbsp;interface \u0026lt;interface\u0026gt; ]\u003cbr\u003eOR\u003cbr\u003e\u0026nbsp; [\u0026nbsp; protocols oam ethernet connectivity-fault-management maintenance-domain \u0026lt;md_name\u0026gt; interface \u0026lt;interface\u0026gt;\u0026nbsp;/ vlan \u0026lt;vlan\u0026gt; ]\u003cbr\u003e\u003cbr\u003e2. ECMP, sampling\u003cbr\u003e\u003cbr\u003e\u0026nbsp; [ \\n\\n\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003eprotocols sflow interfaces \u0026lt;interface\u0026gt;\u003c/span\u003e\\n\\n ]\", \"base64\": false}]}], \"providerMetadata\": {\"orgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"shortName\": \"juniper\", \"dateUpdated\": \"2024-07-11T16:17:56.613Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-39542\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-07-11T20:48:20.405Z\", \"dateReserved\": \"2024-06-25T15:12:53.244Z\", \"assignerOrgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"datePublished\": \"2024-07-11T16:17:56.613Z\", \"assignerShortName\": \"juniper\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}