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                "id": "CVE-2024-47493",
                "options": [
                  {
                    "Exploitation": "none"
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                  {
                    "Automatable": "no"
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                  {
                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2024-10-11T17:48:58.046112Z",
                "version": "2.0.3"
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          "dateUpdated": "2024-10-11T17:49:07.243Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "MX"
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          "product": "Junos OS",
          "vendor": "Juniper Networks",
          "versions": [
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              "lessThan": "21.2R3-S7",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
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            {
              "lessThan": "21.4R3-S6",
              "status": "affected",
              "version": "21.4",
              "versionType": "semver"
            },
            {
              "lessThan": "22.1R3-S5",
              "status": "affected",
              "version": "22.1",
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              "status": "affected",
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              "status": "affected",
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              "status": "affected",
              "version": "23.2",
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      "datePublic": "2024-10-09T16:00:00.000Z",
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              "value": "A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of the Juniper Networks Junos OS on the MX Series platforms with Trio-based FPCs allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).\u003cbr\u003e\u003cbr\u003eIn case of channelized Modular Interface Cards (MICs), every physical interface flap operation will leak heap memory. Over a period of time, continuous physical interface flap operations causes\u0026nbsp;local FPC  to eventually run out of memory and crash.\u0026nbsp;\u0026nbsp;\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u003cbr\u003eBelow CLI command can be used to check the memory usage over a period of time:\u003cbr\u003e\u003cbr\u003e\u003c/span\u003e\u003ctt\u003e\u003ctt\u003e\u003ctt\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u2003\u2003user@host\u0026gt; show chassis fpc\u003cbr\u003e\n\n\n\n\n\n\n\n\n\n\u003cp\u003e\n\n\n\n\n\n\n\n\n\n\n\u003c/p\u003e\u003cp\u003e\u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; Temp  CPU Utilization (%) \u0026nbsp; CPU Utilization (%)  Memory \u0026nbsp; \nUtilization (%)\u003cbr\u003e\u0026nbsp; Slot State \u0026nbsp; \u0026nbsp;  (C)\u0026nbsp; Total\u0026nbsp; Interrupt \u0026nbsp; \u0026nbsp;  1min \u0026nbsp; 5min \u0026nbsp;\n15min DRAM (MB) Heap \u0026nbsp; \u0026nbsp; Buffer\u003cbr\u003e\n\u0026nbsp; 0 \nOnline\u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp;43 \u0026nbsp; \u0026nbsp; 41 \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \n2 \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; 2048 \u0026nbsp; \u0026nbsp; \u0026nbsp; 49 \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; 14\u003cbr\u003e\n\u0026nbsp; 1 \nOnline\u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp;43 \u0026nbsp; \u0026nbsp; 41 \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \n2 \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp;\n2048 \u0026nbsp; \u0026nbsp; \u0026nbsp; 49 \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; 14\u003cbr\u003e\n\u0026nbsp; 2 \nOnline\u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp;43 \u0026nbsp; \u0026nbsp; 41 \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \n2 \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp;\n2048 \u0026nbsp; \u0026nbsp; \u0026nbsp; 49 \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; 14\u003cbr\u003e\u003c/p\u003e\u003cp\u003e\u003cbr\u003e\u003c/p\u003e\n\n\u003cp\u003e\u003c/p\u003e\u003c/span\u003e\u003c/span\u003e\u003c/tt\u003e\u003c/tt\u003e\u003c/tt\u003e\u003c/span\u003e\u003cp\u003eThis issue affects Junos OS on MX Series:\u0026nbsp;\u003cbr\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions before 21.2R3-S7,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 21.4 before 21.4R3-S6,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.1 before 22.1R3-S5,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.2 before 22.2R3-S3,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.3 before 22.3R3-S2,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 22.4 before 22.4R3,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.2 before 23.2R2,\u0026nbsp;\u003c/li\u003e\u003cli\u003efrom 23.4 before 23.4R2.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e"
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          "value": "A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of the Juniper Networks Junos OS on the MX Series platforms with Trio-based FPCs allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).\n\nIn case of channelized Modular Interface Cards (MICs), every physical interface flap operation will leak heap memory. Over a period of time, continuous physical interface flap operations causes\u00a0local FPC  to eventually run out of memory and crash.\u00a0\u00a0\n\nBelow CLI command can be used to check the memory usage over a period of time:\n\n\u2003\u2003user@host\u003e show chassis fpc\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Temp  CPU Utilization (%) \u00a0 CPU Utilization (%)  Memory \u00a0 \nUtilization (%)\n\u00a0 Slot State \u00a0 \u00a0  (C)\u00a0 Total\u00a0 Interrupt \u00a0 \u00a0  1min \u00a0 5min \u00a0\n15min DRAM (MB) Heap \u00a0 \u00a0 Buffer\n\n\u00a0 0 \nOnline\u00a0 \u00a0 \u00a0 \u00a043 \u00a0 \u00a0 41 \u00a0 \u00a0 \u00a0 \u00a0 \n2 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 2048 \u00a0 \u00a0 \u00a0 49 \u00a0 \u00a0 \u00a0 \u00a0 14\n\n\u00a0 1 \nOnline\u00a0 \u00a0 \u00a0 \u00a043 \u00a0 \u00a0 41 \u00a0 \u00a0 \u00a0 \u00a0 \n2 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\n2048 \u00a0 \u00a0 \u00a0 49 \u00a0 \u00a0 \u00a0 \u00a0 14\n\n\u00a0 2 \nOnline\u00a0 \u00a0 \u00a0 \u00a043 \u00a0 \u00a0 41 \u00a0 \u00a0 \u00a0 \u00a0 \n2 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\n2048 \u00a0 \u00a0 \u00a0 49 \u00a0 \u00a0 \u00a0 \u00a0 14\n\n\n\n\n\n\n\n\n\nThis issue affects Junos OS on MX Series:\u00a0\n\n\n\n\n  *  All versions before 21.2R3-S7,\u00a0\n  *  from 21.4 before 21.4R3-S6,\u00a0\n  *  from 22.1 before 22.1R3-S5,\u00a0\n  *  from 22.2 before 22.2R3-S3,\u00a0\n  *  from 22.3 before 22.3R3-S2,\u00a0\n  *  from 22.4 before 22.4R3,\u00a0\n  *  from 23.2 before 23.2R2,\u00a0\n  *  from 23.4 before 23.4R2."
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          "url": "https://www.juniper.net/documentation/us/en/software/junos/interfaces-link-multilink/topics/topic-map/link-multilink-services-understanding.html#id-multilink-interfaces-on-channelized-mics-overview"
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      "source": {
        "advisory": "JSA88119",
        "defect": [
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        "discovery": "USER"
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      "title": "Junos OS: MX Series: Trio-based FPCs: Continuous physical Interface flaps causes local FPC to crash",
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    "assignerShortName": "juniper",
    "cveId": "CVE-2024-47493",
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    "dateUpdated": "2024-11-08T17:17:27.242Z",
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