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cvelist/2021/0xxx/CVE-2021-0240.json

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{
"CVE_data_meta": {
Juniper JSA publication 2021-04. See https://advisory.juniper.net for more information. Juniper JSA publication 2021-04. See https://advisory.juniper.net for more information.
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"ASSIGNER": "sirt@juniper.net",
"DATE_PUBLIC": "2021-04-14T16:00:00.000Z",
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"ID": "CVE-2021-0240",
Juniper JSA publication 2021-04. See https://advisory.juniper.net for more information. Juniper JSA publication 2021-04. See https://advisory.juniper.net for more information.
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"STATE": "PUBLIC",
"TITLE": "Junos OS: Receipt of malformed DHCPv6 packets causes jdhcpd to crash and restart."
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},
Juniper JSA publication 2021-04. See https://advisory.juniper.net for more information. Juniper JSA publication 2021-04. See https://advisory.juniper.net for more information.
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"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Junos OS",
"version": {
"version_data": [
{
"version_affected": "<",
"version_name": "17.3",
"version_value": "17.3R3-S12"
},
{
"version_affected": "<",
"version_name": "17.4",
"version_value": "17.4R3-S5"
},
{
"version_affected": "<",
"version_name": "18.1",
"version_value": "18.1R3-S13"
},
{
"version_affected": "<",
"version_name": "18.2",
"version_value": "18.2R3-S8"
},
{
"version_affected": "<",
"version_name": "18.3",
"version_value": "18.3R3-S5"
},
{
"version_affected": "<",
"version_name": "18.4",
"version_value": "18.4R1-S8, 18.4R3-S7"
},
{
"version_affected": "<",
"version_name": "19.1",
"version_value": "19.1R3-S5"
},
{
"version_affected": "<",
"version_name": "19.2",
"version_value": "19.2R3-S2"
},
{
"version_affected": "<",
"version_name": "19.3",
"version_value": "19.3R3-S2"
},
{
"version_affected": "<",
"version_name": "19.4",
"version_value": "19.4R3-S2"
},
{
"version_affected": "<",
"version_name": "20.1",
"version_value": "20.1R3"
},
{
"version_affected": "<",
"version_name": "20.2",
"version_value": "20.2R2-S3, 20.2R3"
},
{
"version_affected": "<",
"version_name": "20.3",
"version_value": "20.3R2"
},
{
"version_affected": "<",
"version_name": "20.4",
"version_value": "20.4R2"
}
]
}
}
]
},
"vendor_name": "Juniper Networks"
}
]
}
},
"configuration": [
{
"lang": "eng",
"value": "The example of DHCPv6 local server configuration stanza affected by this issue is:\n [system services dhcp-local-server dhcpv6]\n\nThe example of configuration stanza for DHCPv6 Relay Agent affected by this issue is: \n [forwarding-options dhcp-relay dhcpv6]"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
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"description": {
"description_data": [
{
"lang": "eng",
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"value": "On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, the Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash if a malformed DHCPv6 packet is received, resulting in a restart of the daemon. The daemon automatically restarts without intervention, but continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects DHCPv6. DHCPv4 is not affected by this issue. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R1-S8, 18.4R3-S7; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R3-S2; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2."
Juniper JSA publication 2021-04. See https://advisory.juniper.net for more information. Juniper JSA publication 2021-04. See https://advisory.juniper.net for more information.
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}
]
},
"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": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-703 Improper Check or Handling of Exceptional Conditions"
}
]
},
{
"description": [
{
"lang": "eng",
"value": "Denial of Service (DoS)"
}
]
}
]
},
"references": {
"reference_data": [
{
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"refsource": "MISC",
"url": "https://kb.juniper.net/JSA11168",
"name": "https://kb.juniper.net/JSA11168"
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}
]
Juniper JSA publication 2021-04. See https://advisory.juniper.net for more information. Juniper JSA publication 2021-04. See https://advisory.juniper.net for more information.
2021-04-22 13:31:05 -06:00
},
"solution": [
{
"lang": "eng",
"value": "The following software releases have been updated to resolve this specific issue: Junos OS 17.3R3-S12, 17.4R3-S5, 18.1R3-S13, 18.2R3-S8, 18.3R3-S5, 18.4R1-S8, 18.4R3-S7, 19.1R3-S5, 19.2R3-S2, 19.3R3-S2, 19.4R3-S2, 20.1R3, 20.2R2-S3, 20.2R3, 20.3R2, 20.4R2, 21.1R1, and all subsequent releases.\n"
}
],
"source": {
"advisory": "JSA11168",
"defect": [
"1564434"
],
"discovery": "USER"
},
"work_around": [
{
"lang": "eng",
"value": "There are no viable workarounds for this issue."
}
]
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}
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