CVE-2021-0226

published 2021-04-22

CVE-2021-0226: 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…

Priority P3 41 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

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

8 ranges

Vendor	Product	Version range	Fixed in
juniper	junos_os	—	—
juniper	junos_os_evolved	—	—
juniper	junos_os_evolved	—	—
juniper	junos_os_evolved	—	—
juniper_networks	junos_os_evolved	>= 19.4-EVO < 19.4R2-S3-EVO	19.4R2-S3-EVO
juniper_networks	junos_os_evolved	>= 20.1-EVO < 20.1R2-S3-EVO	20.1R2-S3-EVO
juniper_networks	junos_os_evolved	>= 20.2-EVO < 20.2R2-S1-EVO	20.2R2-S1-EVO
juniper_networks	junos_os_evolved	>= 20.3-EVO < 20.3R2-EVO	20.3R2-EVO

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd v2.0 5.0 MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P

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CWE-665