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Unrated severityNVD Advisory· Published Apr 22, 2021· Updated Sep 17, 2024

Junos OS Evolved: The IPv6 BGP session will flap due to receipt of a specific IPv6 packet

CVE-2021-0226

Description

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. This issue does not affect Juniper Networks Junos OS releases.

Affected products

2
  • Juniper Networks/Junos OS Evolvedllm-fuzzy2 versions
    >=19.4, <19.4R2-S3-EVO; >=20.1, <20.1R2-S3-EVO; >=20.2, <20.2R2-S1-EVO; >=20.3, <20.3R2-EVO+ 1 more
    • (no CPE)range: >=19.4, <19.4R2-S3-EVO; >=20.1, <20.1R2-S3-EVO; >=20.2, <20.2R2-S1-EVO; >=20.3, <20.3R2-EVO
    • (no CPE)range: 19.4-EVO

Patches

Vulnerability mechanics

References

1

News mentions

0

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