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CVE-2021-0209

CVE information

Published

1 year ago

Last Modified

1 year ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

Medium

Impact Analysis

Description

In Juniper Networks Junos OS Evolved an attacker sending certain valid BGP update packets may cause Junos OS Evolved to access an uninitialized pointer causing RPD to core leading to a Denial of Service (DoS). Continued receipt of these types of valid BGP update packets will cause an extended Denial of Service condition. RPD will require a restart to recover. An indicator of compromise is to see if the file rpd.re exists by issuing the command: show system core-dumps This issue affects: Juniper Networks Junos OS Evolved 19.4 versions prior to 19.4R2-S2-EVO; 20.1 versions prior to 20.1R1-S2-EVO, 20.1R2-S1-EVO. This issue does not affect Junos OS..

CVSSv2.0 Score

Severity
Medium
Base Score
5.7/10
Exploit Score
5.5/10
Access Vector
Adjacent_network
Access Complexity
Medium
Authentication Required
None
Impact Score
6.9/10
Confidentiality Impact
None
Availability Impact
Complete
Integrity Impact
None

CVSSv3.1 Score

Severity
Medium
Base Score
6.5/10
Exploit Score
2.8/10
Access Vector
Adjacent_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:20.1:r1-s1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos_os_evolved:19.4:r1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos_os_evolved:20.1:-:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos_os_evolved:19.4:r2-s1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos_os_evolved:19.4:r2:*:*:*:*:*:*
  Yes
- -