"value":"\nAn Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS).\n\nOn Junos MX Series platforms with Precision Time Protocol (PTP) configured, a prolonged routing protocol churn can lead to an FPC crash and restart.\n\nThis issue affects Juniper Networks Junos OS on MX Series:\n\n\n\n * All versions prior to 20.4R3-S4;\n * 21.1 version 21.1R1 and later versions;\n * 21.2 versions prior to 21.2R3-S2;\n * 21.3 versions prior to 21.3R3-S5;\n * 21.4 versions prior to 21.4R3;\n * 22.1 versions prior to 22.1R3;\n * 22.2 versions prior to 22.2R1-S1, 22.2R2.\n\n\n\n\n\n\n"
}
]
},
"problemtype":{
"problemtype_data":[
{
"description":[
{
"lang":"eng",
"value":"CWE-754 Improper Check for Unusual or Exceptional Conditions",
"value":"<p>To be exposed to this issue an FPC must have at least one interface with PTP configured like in the following example:</p> <tt>[ protocols ptp master/slave interface ]</tt>"
}
],
"value":"To be exposed to this issue an FPC must have at least one interface with PTP configured like in the following example:\n\n [ protocols ptp master/slave interface ]"
}
],
"work_around":[
{
"lang":"en",
"supportingMedia":[
{
"base64":false,
"type":"text/html",
"value":"<p>There are no known workarounds for this issue.</p>"
}
],
"value":"There are no known workarounds for this issue.\n\n"
}
],
"exploit":[
{
"lang":"en",
"supportingMedia":[
{
"base64":false,
"type":"text/html",
"value":"<p>Juniper SIRT is not aware of any malicious exploitation of this vulnerability.</p>"
}
],
"value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\n\n"
}
],
"solution":[
{
"lang":"en",
"supportingMedia":[
{
"base64":false,
"type":"text/html",
"value":"<p>The following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S4, 21.2R3-S2, 21.3R3-S5, 21.4R3, 22.1R3, 22.2R1-S1, 22.2R2, 22.3R1, and all subsequent releases.</p>"
}
],
"value":"The following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S4, 21.2R3-S2, 21.3R3-S5, 21.4R3, 22.1R3, 22.2R1-S1, 22.2R2, 22.3R1, and all subsequent releases.\n\n"