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CVE-2021-0262

CVE information

Published

1 year ago

Last Modified

1 year ago

CVSSv2.0 Severity

Low

CVSSv3.1 Severity

Medium

Impact Analysis

Description

Through routine static code analysis of the Juniper Networks Junos OS software codebase, the Secure Development Life Cycle team identified a Use After Free vulnerability in PFE packet processing on the QFX10002-60C switching platform. Exploitation of this vulnerability may allow a logically adjacent attacker to trigger a Denial of Service (DoS). Continued exploitation of this vulnerability will sustain the Denial of Service (DoS) condition. This issue only affects QFX10002-60C devices. No other product or platform is vulnerable to this issue. This issue affects Juniper Networks Junos OS on QFX10002-60C: 19.1 version 19.1R3-S1 and later versions; 19.1 versions prior to 19.1R3-S3; 19.2 version 19.2R2 and later versions; 19.2 versions prior to 19.2R3-S1; 20.2 versions prior to 20.2R1-S2. This issue does not affect Juniper Networks Junos OS: versions prior to 19.1R3; 19.2 versions prior to 19.2R2; any version of 19.3; version 20.2R2 and later releases..

CVSSv2.0 Score

Severity
Low
Base Score
3.3/10
Exploit Score
6.5/10
Access Vector
Adjacent_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
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:19.1:r3-s1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:19.1:r3-s2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:19.2:r2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:19.2:r3:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:juniper:junos:19.2:r2-s1:*:*:*:*:*:*
  Yes
- -