{"containers":{"cna":{"affected":[{"product":"Junos OS Evolved","vendor":"Juniper Networks","versions":[{"lessThan":"19.4R2-S3-EVO","status":"affected","version":"19.4-EVO","versionType":"custom"},{"lessThan":"20.1R2-S3-EVO","status":"affected","version":"20.1-EVO","versionType":"custom"},{"lessThan":"20.2R2-S1-EVO","status":"affected","version":"20.2-EVO","versionType":"custom"},{"lessThan":"20.3R2-EVO","status":"affected","version":"20.3-EVO","versionType":"custom"}]}],"datePublic":"2021-04-14T00:00:00.000Z","descriptions":[{"lang":"en","value":"On Juniper Networks Junos OS Evolved devices, receipt of a specific IPv6 packet may cause an established IPv6 BGP session to terminate, creating a Denial of Service (DoS) condition. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue does not affect IPv4 BGP sessions. This issue affects IBGP or EBGP peer sessions with IPv6. This issue affects: Juniper Networks Junos OS Evolved: 19.4 versions prior to 19.4R2-S3-EVO; 20.1 versions prior to 20.1R2-S3-EVO; 20.2 versions prior to 20.2R2-S1-EVO; 20.3 versions prior to 20.3R2-EVO. 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