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"cveId": "CVE-2023-36835",
"assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
"state": "PUBLISHED",
"assignerShortName": "juniper",
"dateReserved": "2023-06-27T16:17:25.276Z",
"datePublished": "2023-07-14T17:11:26.454Z",
"dateUpdated": "2024-08-02T17:01:09.846Z"
},
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"platforms": [
"QFX10000 Series"
],
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"changes": [
{
"at": "20.3R1",
"status": "affected"
}
],
"lessThan": "20.3*",
"status": "affected",
"version": "20.3",
"versionType": "custom"
},
{
"lessThan": "20.4R3-S5",
"status": "affected",
"version": "20.4",
"versionType": "custom"
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{
"lessThan": "21.1R3-S5",
"status": "affected",
"version": "21.1",
"versionType": "custom"
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{
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"status": "affected",
"version": "21.2",
"versionType": "custom"
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{
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"status": "affected",
"version": "21.3",
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{
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"status": "affected",
"version": "21.4",
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{
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"status": "affected",
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{
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"status": "affected",
"version": "22.2",
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{
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"status": "affected",
"version": "22.3",
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]
}
],
"configurations": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "To be exposed to this issue the QFX device needs be configured for VXLAN with either of the following statements:
[ vlans <vlan> vxlan ]
[ routing-instances <routing-instance> vxlan ]"
}
],
"value": "To be exposed to this issue the QFX device needs be configured for VXLAN with either of the following statements:\n\n [ vlans vxlan ]\n\n [ routing-instances vxlan ]"
}
],
"datePublic": "2023-07-12T16:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
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"type": "text/html",
"value": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX10000 Series allows a network based attacker to cause a Denial of Service (DoS).
If a specific valid IP packet is received and that packet needs to be routed over a VXLAN tunnel, this will result in a PFE wedge condition due to which traffic gets impacted. As this is not a crash and restart scenario, this condition will persist until the system is rebooted to recover.
This issue affects Juniper Networks Junos OS on QFX10000:
20.3 version 20.3R1 and later versions;
20.4 versions prior to 20.4R3-S5;
21.1 versions prior to 21.1R3-S5;
21.2 versions prior to 21.2R3-S5;
21.3 versions prior to 21.3R3-S4;
21.4 versions prior to 21.4R3-S1;
22.1 versions prior to 22.1R3;
22.2 versions prior to 22.2R2;
22.3 versions prior to 22.3R1-S2, 22.3R2.
"
}
],
"value": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX10000 Series allows a network based attacker to cause a Denial of Service (DoS).\n\nIf a specific valid IP packet is received and that packet needs to be routed over a VXLAN tunnel, this will result in a PFE wedge condition due to which traffic gets impacted. As this is not a crash and restart scenario, this condition will persist until the system is rebooted to recover.\n\nThis issue affects Juniper Networks Junos OS on QFX10000:\n20.3 version 20.3R1 and later versions;\n20.4 versions prior to 20.4R3-S5;\n21.1 versions prior to 21.1R3-S5;\n21.2 versions prior to 21.2R3-S5;\n21.3 versions prior to 21.3R3-S4;\n21.4 versions prior to 21.4R3-S1;\n22.1 versions prior to 22.1R3;\n22.2 versions prior to 22.2R2;\n22.3 versions prior to 22.3R1-S2, 22.3R2.\n"
}
],
"exploits": [
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"lang": "en",
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"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
"
}
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"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\n"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"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:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
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"value": "GENERAL"
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}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-754",
"description": "CWE-754 Improper Check for Unusual or Exceptional Conditions",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"description": "Denial of Service (DoS)",
"lang": "en"
}
]
}
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"shortName": "juniper",
"dateUpdated": "2023-07-14T17:11:26.454Z"
},
"references": [
{
"url": "https://supportportal.juniper.net/JSA71642"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "The following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S5, 21.1R3-S5, 21.2R3-S5, 21.3R3-S4, 21.4R3-S1, 22.1R3, 22.2R2, 22.3R1-S2, 22.3R2, 22.4R1, and all subsequent releases.
"
}
],
"value": "The following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S5, 21.1R3-S5, 21.2R3-S5, 21.3R3-S4, 21.4R3-S1, 22.1R3, 22.2R2, 22.3R1-S2, 22.3R2, 22.4R1, and all subsequent releases.\n"
}
],
"source": {
"advisory": "JSA71642",
"defect": [
"1678992"
],
"discovery": "USER"
},
"title": "Junos OS: QFX10000 Series: All traffic will be dropped after a specific valid IP packet has been received which needs to be routed over a VXLAN tunnel",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "There are no known workarounds for this issue.
"
}
],
"value": "There are no known workarounds for this issue.\n"
}
],
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"shortName": "CVE",
"dateUpdated": "2024-08-02T17:01:09.846Z"
},
"title": "CVE Program Container",
"references": [
{
"url": "https://supportportal.juniper.net/JSA71642",
"tags": [
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}
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}