"value":"\n\n\n\n\nAn Improper Handling of Syntactically Invalid Structure vulnerability in Object Flooding Protocol (OFP) service of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).\n\nOn all Junos OS Evolved platforms, when specific TCP packets are received on an open OFP port, the OFP crashes leading to a restart of Routine Engine (RE). Continuous receipt of these specific TCP packets will lead to a sustained Denial of Service (DoS) condition.\n\n\n\n\n\nThis issue affects:\n\nJuniper Networks Junos OS Evolved\n\n\n\n * All versions earlier than 21.2R3-S7-EVO;\n * 21.3 versions earlier than 21.3R3-S5-EVO ;\n * 21.4 versions earlier than 21.4R3-S5-EVO;\n * 22.1 versions earlier than 22.1R3-S4-EVO;\n * 22.2 versions earlier than 22.2R3-S3-EVO ;\n * 22.3 versions earlier than 22.3R3-EVO;\n * 22.4 versions earlier than 22.4R2-EVO, 22.4R3-EVO.\n\n\n\n\n\n\n"
"value":"\n\n<p>To be affected by this issue, OFP needs to be enabled. Execute the following command to check if OFP is running and on which ports.</p><code>[ show system connections | match ofp | match LISTEN ]</code><br>\n\n<br>"
}
],
"value":"\nTo be affected by this issue, OFP needs to be enabled. Execute the following command to check if OFP is running and on which ports.\n\n[ show system connections | match ofp | match LISTEN ]\n\n\n\n"
"value":"\n\n<p>In order to prevent this issue, following firewall filter needs to be added for each OFP port.</p><tt>[ firewall family inet filter mgmt-filter term discard_ofp from protocol tcp ]<br>[ firewall family inet filter mgmt-filter term discard_ofp from destination-port <ofp_port_1> ]<br>[ firewall family inet filter mgmt-filter term discard_ofp from destination-port <ofp_port_2> ]<br>[ firewall family inet filter mgmt-filter term discard_ofp then discard ]<br>[ firewall family inet filter mgmt-filter term 2 then accept ]<br></tt><br><tt>[ interfaces re0:mgmt-0 unit 0 family inet filter input mgmt-filter ]<br>[ interfaces re1:mgmt-0 unit 0 family inet filter input mgmt-filter ]</tt><br>\n\n<tt></tt>"
"value":"\nIn order to prevent this issue, following firewall filter needs to be added for each OFP port.\n\n[ firewall family inet filter mgmt-filter term discard_ofp from protocol tcp ]\n[ firewall family inet filter mgmt-filter term discard_ofp from destination-port <ofp_port_1> ]\n[ firewall family inet filter mgmt-filter term discard_ofp from destination-port <ofp_port_2> ]\n[ firewall family inet filter mgmt-filter term discard_ofp then discard ]\n[ firewall family inet filter mgmt-filter term 2 then accept ]\n\n[ interfaces re0:mgmt-0 unit 0 family inet filter input mgmt-filter ]\n[ interfaces re1:mgmt-0 unit 0 family inet filter input mgmt-filter ]\n\n\n"
"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":[
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"value":"<p>The following software releases have been updated to resolve this specific issue:</p><p>Junos OS Evolved: 21.2R3-S7-EVO, 21.3R3-S5-EVO, 21.4R3-S5-EVO, 22.1R3-S4-EVO, 22.2R3-S3-EVO, 22.3R3-EVO, 22.4R2-EVO, 22.4R3-EVO, 23.2R1-EVO, and all subsequent releases.</p>"
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"value":"The following software releases have been updated to resolve this specific issue:\n\nJunos OS Evolved: 21.2R3-S7-EVO, 21.3R3-S5-EVO, 21.4R3-S5-EVO, 22.1R3-S4-EVO, 22.2R3-S3-EVO, 22.3R3-EVO, 22.4R2-EVO, 22.4R3-EVO, 23.2R1-EVO, and all subsequent releases.\n\n"
