Description (CNA)
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 prior to 19.3R3-S4; 19.4 versions prior to 19.4R2-S6, 19.4R3-S6; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2. Juniper Networks Junos OS Evolved All versions prior to 20.4R3-S3-EVO; 21.2 versions prior to 21.2R2-EVO. This issue does not affect Juniper Networks Junos OS versions prior to 19.3R1.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Juniper Networks / Junos OS | unaffected unspecified before 19.3R1; affected 19.3 before 19.3R3-S4; affected 19.4 before 19.4R2-S6, 19.4R3-S6; affected 20.1 before 20.1R3-S2; affected 20.2 before 20.2R3-S3; affected 20.3 before 20.3R3-S1; affected 20.4 before 20.4R3; affected 21.1 before 21.1R3; affected 21.2 before 21.2R2 |
| Juniper Networks / Junos OS Evolved | affected unspecified before 20.4R3-S3-EVO; affected 21.2 before 21.2R2-EVO |
CWE
CWE-754
References
ADP enrichment
No English description supplied.