An Improper Check for Unusual or Exceptional Conditions vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker with an established ISIS adjacency to cause a Denial of Service (DoS). The rpd CPU spikes to 100% after a malformed ISIS TLV has been received which will lead to processing issues of routing updates and in turn traffic impact. This issue affects: Juniper Networks Junos OS 19.3 versions before 19.3R3-S4; 19.4 versions before 19.4R2-S6, 19.4R3-S6; 20.1 versions before 20.1R3-S2; 20.2 versions before 20.2R3-S3; 20.3 versions before 20.3R3-S1; 20.4 versions before 20.4R3; 21.1 versions before 21.1R3; 21.2 versions before 21.2R2. Juniper Networks Junos OS Evolved All versions before 20.4R3-S3-EVO; 21.2 versions before 21.2R2-EVO. This issue does not affect Juniper Networks Junos OS versions before 19.3R1.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
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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 20.4 |
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juniper junos 21.1 |
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juniper junos 21.2 |
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juniper junos os evolved |
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juniper junos os evolved 20.4 |
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juniper junos os evolved 21.2 |
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