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CVE-2021-0226

CVE information

Published

1 year ago

Last Modified

1 year ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

High

Impact Analysis

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..

CVSSv2.0 Score

Severity
Medium
Base Score
5/10
Exploit Score
10/10
Access Vector
Network
Access Complexity
Low
Authentication Required
None
Impact Score
2.9/10
Confidentiality Impact
None
Availability Impact
Partial
Integrity Impact
None

CVSSv3.1 Score

Severity
High
Base Score
7.5/10
Exploit Score
3.9/10
Access Vector
Network
Access Complexity
Low
Privileges Required
None
Impact Score
3.6/10
Confidentiality Impact
None
Availability Impact
High
Integrity Impact
None
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:o:juniper:junos_os_evolved:20.1:r1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos_os_evolved:20.3:r1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos_os_evolved:20.2:r1-s1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos_os_evolved:20.2:r1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos_os_evolved:20.1:r1-s1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos_os_evolved:20.3:r1-s1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos_os_evolved:20.1:r2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos_os_evolved:20.2:r2:*:*:*:*:*:*
  Yes
- -