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cvelist/2020/1xxx/CVE-2020-1655.json
CVE Team 704b2f564a
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2020-07-17 19:01:36 +00:00

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{
"CVE_data_meta": {
"ASSIGNER": "sirt@juniper.net",
"DATE_PUBLIC": "2020-07-08T16:00:00.000Z",
"ID": "CVE-2020-1655",
"STATE": "PUBLIC",
"TITLE": "Junos OS: MX Series: PFE crash on MPC7/8/9 upon receipt of large packets requiring fragmentation"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Junos OS",
"version": {
"version_data": [
{
"platform": "MX Series",
"version_affected": "!<",
"version_value": "17.2"
},
{
"platform": "MX Series",
"version_affected": "<",
"version_name": "17.2",
"version_value": "17.2R3-S4"
},
{
"platform": "MX Series",
"version_affected": "<",
"version_name": "17.3",
"version_value": "17.3R3-S8"
},
{
"platform": "MX Series",
"version_affected": "<",
"version_name": "17.4",
"version_value": "17.4R2-S10, 17.4R3-S2"
},
{
"platform": "MX Series",
"version_affected": "<",
"version_name": "18.1",
"version_value": "18.1R3-S10"
},
{
"platform": "MX Series",
"version_affected": "<",
"version_name": "18.2",
"version_value": "18.2R3-S3"
},
{
"platform": "MX Series",
"version_affected": "<",
"version_name": "18.2X75",
"version_value": "18.2X75-D41, 18.2X75-D430, 18.2X75-D65"
},
{
"platform": "MX Series",
"version_affected": "<",
"version_name": "18.3",
"version_value": "18.3R1-S7, 18.3R2-S4, 18.3R3-S1"
},
{
"platform": "MX Series",
"version_affected": "<",
"version_name": "18.4",
"version_value": "18.4R1-S7, 18.4R2-S4, 18.4R3"
},
{
"platform": "MX Series",
"version_affected": "<",
"version_name": "19.1",
"version_value": "19.1R1-S5, 19.1R2-S1, 19.1R3"
},
{
"platform": "MX Series",
"version_affected": "<",
"version_name": "19.2",
"version_value": "19.2R1-S4, 19.2R2"
},
{
"platform": "MX Series",
"version_affected": "<",
"version_name": "19.3",
"version_value": "19.3R2-S2, 19.3R3"
}
]
}
}
]
},
"vendor_name": "Juniper Networks"
}
]
}
},
"configuration": [
{
"lang": "eng",
"value": "A sample configuration for enabling inline IP reassembly is shown below:\n\n set chassis fpc 8 pic 0 inline-services bandwidth 100g\n\nNote: Explicitly specifying a bandwidth for L2TP LNS tunnel traffic using inline services is not required. When a bandwidth is not specified, the maximum bandwidth supported on the PIC is automatically available for the inline services.\n"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "When a device running Juniper Networks Junos OS with MPC7, MPC8, or MPC9 line cards installed and the system is configured for inline IP reassembly, used by L2TP, MAP-E, GRE, and IPIP, the packet forwarding engine (PFE) will become disabled upon receipt of large packets requiring fragmentation, generating the following error messages: [LOG: Err] MQSS(0): WO: Packet Error - Error Packets 1, Connection 29 [LOG: Err] eachip_hmcif_rx_intr_handler(7259): EA[0:0]: HMCIF Rx: Injected checksum error detected on WO response - Chunk Address 0x0 [LOG: Err] MQSS(0): DRD: RORD1: CMD reorder ID error - Command 11, Reorder ID 1838, QID 0 [LOG: Err] MQSS(0): DRD: UNROLL0: HMC chunk length error in stage 5 - Chunk Address: 0x4321f3 [LOG: Err] MQSS(0): DRD: UNROLL0: HMC chunk address error in stage 5 - Chunk Address: 0x0 [LOG: Notice] Error: /fpc/8/pfe/0/cm/0/MQSS(0)/0/MQSS_CMERROR_DRD_RORD_ENG_INT_REG_CMD_FSM_STATE_ERR (0x2203cc), scope: pfe, category: functional, severity: major, module: MQSS(0), type: DRD_RORD_ENG_INT: CMD FSM State Error [LOG: Notice] Performing action cmalarm for error /fpc/8/pfe/0/cm/0/MQSS(0)/0/MQSS_CMERROR_DRD_RORD_ENG_INT_REG_CMD_FSM_STATE_ERR (0x2203cc) in module: MQSS(0) with scope: pfe category: functional level: major [LOG: Notice] Performing action get-state for error /fpc/8/pfe/0/cm/0/MQSS(0)/0/MQSS_CMERROR_DRD_RORD_ENG_INT_REG_CMD_FSM_STATE_ERR (0x2203cc) in module: MQSS(0) with scope: pfe category: functional level: major [LOG: Notice] Performing action disable-pfe for error /fpc/8/pfe/0/cm/0/MQSS(0)/0/MQSS_CMERROR_DRD_RORD_ENG_INT_REG_CMD_FSM_STATE_ERR (0x2203cc) in module: MQSS(0) with scope: pfe category: functional level: major By continuously sending fragmented packets that cannot be reassembled, an attacker can repeatedly disable the PFE causing a sustained Denial of Service (DoS). This issue affects Juniper Networks Junos OS: 17.2 versions prior to 17.2R3-S4 on MX Series; 17.3 versions prior to 17.3R3-S8 on MX Series; 17.4 versions prior to 17.4R2-S10, 17.4R3-S2 on MX Series; 18.1 versions prior to 18.1R3-S10 on MX Series; 18.2 versions prior to 18.2R3-S3 on MX Series; 18.2X75 versions prior to 18.2X75-D41, 18.2X75-D430, 18.2X75-D65 on MX Series; 18.3 versions prior to 18.3R1-S7, 18.3R2-S4, 18.3R3-S1 on MX Series; 18.4 versions prior to 18.4R1-S7, 18.4R2-S4, 18.4R3 on MX Series; 19.1 versions prior to 19.1R1-S5, 19.1R2-S1, 19.1R3 on MX Series; 19.2 versions prior to 19.2R1-S4, 19.2R2 on MX Series; 19.3 versions prior to 19.3R2-S2, 19.3R3 on MX Series. This issue is specific to inline IP reassembly, introduced in Junos OS 17.2. Versions of Junos OS prior to 17.2 are unaffected by this vulnerability."
}
]
},
"exploit": [
{
"lang": "eng",
"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
}
],
"generator": {
"engine": "Vulnogram 0.0.9"
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Denial of Service"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.juniper.net/documentation/en_US/junos/topics/topic-map/l2tp-lns-inline-service-interfaces.html",
"refsource": "MISC",
"url": "https://www.juniper.net/documentation/en_US/junos/topics/topic-map/l2tp-lns-inline-service-interfaces.html"
},
{
"name": "https://kb.juniper.net/JSA11041",
"refsource": "CONFIRM",
"url": "https://kb.juniper.net/JSA11041"
}
]
},
"solution": [
{
"lang": "eng",
"value": "The following software releases have been updated to resolve this specific issue: Junos OS 17.2R3-S4, 17.3R3-S8, 17.4R2-S10, 17.4R3-S2, 18.1R3-S10, 18.2R3-S3, 18.2X75-D41, 18.2X75-D430, 18.2X75-D65, 18.3R1-S7, 18.3R2-S4, 18.3R3-S1, 18.4R1-S7, 18.4R2-S4, 18.4R3, 19.1R1-S5, 19.1R2-S1, 19.1R3, 19.2R1-S4, 19.2R2, 19.3R2-S2, 19.3R3, 19.4R1, 19.4R2, 20.1R1, and all subsequent releases.\n"
}
],
"source": {
"advisory": "JSA11041",
"defect": [
"1474154"
],
"discovery": "USER"
},
"work_around": [
{
"lang": "eng",
"value": "There are no available workarounds for this issue."
}
]
}
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