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CVE-2021-0299

CVE information

Published

11 months ago

Last Modified

11 months ago

CVSSv2.0 Severity

High

CVSSv3.1 Severity

High

Impact Analysis

Description

An Improper Handling of Exceptional Conditions vulnerability in the processing of a transit or directly received malformed IPv6 packet in Juniper Networks Junos OS results in a kernel crash, causing the device to restart, leading to a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects systems with IPv6 configured. Devices with only IPv4 configured are not vulnerable to this issue. This issue affects Juniper Networks Junos OS: 19.4 versions prior to 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S1, 20.2R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.4R1..

CVSSv2.0 Score

Severity
High
Base Score
7.1/10
Exploit Score
8.6/10
Access Vector
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
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:19.4:r1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:20.1:r1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:20.1:r1-s1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:20.1:r1-s2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:20.1:r1-s3:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:19.4:r2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:19.4:-:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:19.4:r1-s3:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:19.4:r1-s4:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:19.4:r2-s1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:19.4:r2-s2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:19.4:r2-s3:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:19.4:r2-s4:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:19.4:r2-s5:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:20.1:r1-s4:*:*:*:*:*:*
  Yes
- -