{
    "containers": {
        "cna": {
            "affected": [
                {
                    "platforms": [
                        "EX4300-MP Series, EX4600 Series, EX4650 Series, QFX5K Series"
                    ],
                    "product": "Junos OS",
                    "vendor": "Juniper Networks",
                    "versions": [
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                            "lessThan": "15.1R7-S9",
                            "status": "affected",
                            "version": "15.1",
                            "versionType": "custom"
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                            "lessThan": "17.3R3-S11",
                            "status": "affected",
                            "version": "17.3",
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                            "lessThan": "17.4R2-S13, 17.4R3-S4, 17.4R3-S5",
                            "status": "affected",
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                            "versionType": "custom"
                        },
                        {
                            "lessThan": "18.2R3-S8",
                            "status": "affected",
                            "version": "18.2",
                            "versionType": "custom"
                        },
                        {
                            "lessThan": "18.3R3-S4",
                            "status": "affected",
                            "version": "18.3",
                            "versionType": "custom"
                        },
                        {
                            "lessThan": "18.4R2-S7, 18.4R3-S6",
                            "status": "affected",
                            "version": "18.4",
                            "versionType": "custom"
                        },
                        {
                            "lessThan": "19.1R3-S4",
                            "status": "affected",
                            "version": "19.1",
                            "versionType": "custom"
                        },
                        {
                            "lessThan": "19.2R1-S6, 19.2R3-S1",
                            "status": "affected",
                            "version": "19.2",
                            "versionType": "custom"
                        },
                        {
                            "lessThan": "19.3R3-S1",
                            "status": "affected",
                            "version": "19.3",
                            "versionType": "custom"
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                        {
                            "lessThan": "19.4R2-S4, 19.4R3-S1",
                            "status": "affected",
                            "version": "19.4",
                            "versionType": "custom"
                        },
                        {
                            "lessThan": "20.1R2",
                            "status": "affected",
                            "version": "20.1",
                            "versionType": "custom"
                        },
                        {
                            "lessThan": "20.2R2, 20.2R3",
                            "status": "affected",
                            "version": "20.2",
                            "versionType": "custom"
                        },
                        {
                            "lessThan": "20.3R1-S2, 20.3R2",
                            "status": "affected",
                            "version": "20.3",
                            "versionType": "custom"
                        }
                    ]
                }
            ],
            "configurations": [
                {
                    "lang": "en",
                    "value": "The examples of the configuration stanza affected by this issue is as follows:\n\n  [protocols l2circuit neighbor <address> interface <interface-name>]\n\nused together with\n  [protocols mpls interface <interface-name>]\nor\n  [protocols ospf area <area-id> interface <interface-name>]"
                }
            ],
            "datePublic": "2021-04-14T00:00:00",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "On Juniper Networks EX4300-MP Series, EX4600 Series, EX4650 Series, QFX5K Series deployed as a Virtual Chassis with a specific Layer 2 circuit configuration, Packet Forwarding Engine manager (FXPC) process may crash and restart upon receipt of specific layer 2 frames. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS on EX4300-MP Series, EX4600 Series, EX4650 Series, QFX5K Series 15.1 versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S4, 17.4R3-S5; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R2-S7, 18.4R3-S6; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S1; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S4, 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2, 20.2R3; 20.3 versions prior to 20.3R1-S2, 20.3R2;"
                }
            ],
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                {
                    "lang": "en",
                    "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
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            ],
            "metrics": [
                {
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                        "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"
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                "dateUpdated": "2021-04-22T19:37:03",
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                    "url": "https://kb.juniper.net/JSA11132"
                }
            ],
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                {
                    "lang": "en",
                    "value": "The following software releases have been updated to resolve this specific issue: 15.1R7-S9, 17.3R3-S11, 17.4R2-S13, 17.4R3-S4, 17.4R3-S5, 18.3R3-S4, 18.4R2-S7, 18.4R3-S6, 19.1R3-S4, 19.2R1-S6, 19.2R3-S1, 19.3R3-S1, 19.4R2-S4, 19.4R3-S1, 20.1R2, 20.2R2, 20.2R3, 20.3R1-S2, 20.3R2, 20.4R1, and all subsequent releases."
                }
            ],
            "source": {
                "advisory": "JSA11132",
                "defect": [
                    "1528409"
                ],
                "discovery": "USER"
            },
            "title": "Junos OS: EX4300-MP/EX4600/EX4650/QFX5K Series: Packet Forwarding Engine manager (FXPC) process crashes when deployed in a Virtual Chassis (VC) configuration",
            "workarounds": [
                {
                    "lang": "en",
                    "value": "There are no viable workarounds for this issue."
                }
            ],
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            },
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                    "ASSIGNER": "sirt@juniper.net",
                    "DATE_PUBLIC": "2021-04-14T16:00:00.000Z",
                    "ID": "CVE-2021-0237",
                    "STATE": "PUBLIC",
                    "TITLE": "Junos OS: EX4300-MP/EX4600/EX4650/QFX5K Series: Packet Forwarding Engine manager (FXPC) process crashes when deployed in a Virtual Chassis (VC) configuration"
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                                                        "version_name": "20.3",
                                                        "version_value": "20.3R1-S2, 20.3R2"
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                    {
                        "lang": "en",
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                ],
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        "dateReserved": "2020-10-27T00:00:00",
        "dateUpdated": "2024-09-17T02:56:55.241Z",
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}