Zero-friction vulnerability management platform

Mageni eases for you the vulnerability scanning, assessment, and management process. It is free and open-source.

Install Now

Available for macOS, Windows, and Linux

App screenshot

CVE-2021-0270

CVE information

Published

1 year ago

Last Modified

1 year ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

Medium

Impact Analysis

Description

On PTX Series and QFX10k Series devices with the "inline-jflow" feature enabled, a use after free weakness in the Packet Forwarding Engine (PFE) microkernel architecture of Juniper Networks Junos OS may allow an attacker to cause a Denial of Service (DoS) condition whereby one or more Flexible PIC Concentrators (FPCs) may restart. As this is a race condition situation this issue become more likely to be hit when network instability occurs, such as but not limited to BGP/IGP reconvergences, and/or further likely to occur when more active "traffic flows" are occurring through the device. When this issue occurs, it will cause one or more FPCs to restart unexpectedly. During FPC restarts core files will be generated. While the core file is generated traffic will be disrupted. Sustained receipt of large traffic flows and reconvergence-like situations may sustain the Denial of Service (DoS) situation. This issue affects: Juniper Networks Junos OS: 18.1 version 18.1R2 and later versions prior to 18.1R3-S10 on PTX Series, QFX10K Series..

CVSSv2.0 Score

Severity
Medium
Base Score
4.3/10
Exploit Score
8.6/10
Access Vector
Network
Access Complexity
Medium
Authentication Required
None
Impact Score
2.9/10
Confidentiality Impact
None
Availability Impact
Partial
Integrity Impact
None

CVSSv3.1 Score

Severity
Medium
Base Score
5.9/10
Exploit Score
2.2/10
Access Vector
Network
Access Complexity
High
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:18.1:r3:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:18.1:r2:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:18.1:r2-s2:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:18.1:r3-s4:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:18.1:r3-s3:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:18.1:r3-s2:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:18.1:r2-s1:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:18.1:r2-s4:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:18.1:r3-s1:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:18.1:r3-s5:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:18.1:r3-s6:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:18.1:r3-s7:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:18.1:r3-s8:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:18.1:r3-s9:*:*:*:*:*:*
  Yes
-
cpe:2.3:h:juniper:qfx10002:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:qfx10016:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:qfx10008:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:ptx1000:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:ptx3000:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:ptx5000:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:ptx10002:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:ptx10008:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:ptx10016:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:ptx10001-36mr:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:ptx10003:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:ptx10004:-:*:*:*:*:*:*:*
  No
-