In an MPLS P2MP environment a Loop with Unreachable Exit Condition vulnerability in the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent malicious user to cause high load on RPD which in turn may lead to routing protocol flaps. If a system with sensor-based-stats enabled receives a specific LDP FEC this can lead to the above condition. Continued receipted of such an LDP FEC will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS 19.2 version 19.2R2 and later versions before 19.2R3-S3; 19.3 versions before 19.3R2-S6, 19.3R3-S2; 19.4 versions before 19.4R1-S4, 19.4R2-S4, 19.4R3-S2; 20.1 versions before 20.1R2-S1, 20.1R3; 20.2 versions before 20.2R2-S1, 20.2R3; 20.3 versions before 20.3R1-S2, 20.3R2. This issue does not affect Juniper Networks Junos OS versions before 19.2R2. Juniper Networks Junos OS Evolved All versions before 20.1R2-S3-EVO; 20.3 versions before 20.3R1-S2-EVO.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
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juniper junos 19.2 |
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juniper junos 19.3 |
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juniper junos 19.4 |
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juniper junos 20.1 |
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juniper junos 20.2 |
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juniper junos 20.3 |
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juniper junos os evolved 20.1 |
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juniper junos os evolved 20.2 |
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juniper junos os evolved 20.3 |
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