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CVE-2021-0264

CVE information

Published

1 year ago

Last Modified

1 year ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

High

Impact Analysis

Description

A vulnerability in the processing of traffic matching a firewall filter containing a syslog action in Juniper Networks Junos OS on MX Series with MPC10/MPC11 cards installed, PTX10003 and PTX10008 Series devices, will cause the line card to crash and restart, creating a Denial of Service (DoS). Continued receipt and processing of packets matching the firewall filter can create a sustained Denial of Service (DoS) condition. When traffic hits the firewall filter, configured on lo0 or any physical interface on the line card, containing a term with a syslog action (e.g. 'term <name> then syslog'), the affected line card will crash and restart, impacting traffic processing through the ports of the line card. This issue only affects MX Series routers with MPC10 or MPC11 line cards, and PTX10003 or PTX10008 Series packet transport routers. No other platforms or models of line cards are affected by this issue. Note: This issue has also been identified and described in technical service bulletin TSB17931 (login required). This issue affects: Juniper Networks Junos OS on MX Series: 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R3-S2; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R2-S2, 20.2R3; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R2. Juniper Networks Junos OS Evolved on PTX10003, PTX10008: All versions prior to 20.4R2-EVO. This issue does not affect Juniper Networks Junos OS versions prior to 19.3R1..

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:19.3:-:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:19.3:r1:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:19.3:r2:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:19.3:r2-s1:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:19.3:r1-s1:*:*:*:*:*:*
  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:19.3:r2-s2:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:19.3:r2-s3:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:19.3:r2-s4:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:19.3:r2-s5:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:19.3:r3:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:19.4:r2:*:*:*:*:*:*
  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:r3:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:20.1:r1-s1:*:*:*:*:*:*
  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:20.1:r1-s4:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:20.2:r1-s2:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:20.2:r1-s3:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:20.3:r1:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:19.4:r3-s1:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:20.1:r2:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:20.1:r2-s1:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:20.2:r2:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:20.2:r2-s1:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:20.3:r2:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:*
  Yes
-
cpe:2.3:h:juniper:mx5:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:mx10:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:mx40:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:mx80:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:mx104:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:mx240:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:mx480:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:mx960:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:mx2010:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:mx10000:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:mx10003:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:mx10008:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:mx10016:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:mx150:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:mx2008:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:mx2020:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:mx204:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:o:juniper:junos_os_evolved:19.3:r1:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos_os_evolved:19.3:r2:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos_os_evolved:19.2:r1:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos_os_evolved:19.2:r2:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos_os_evolved:19.1:r1:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos_os_evolved:19.1:r2:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos_os_evolved:18.3:r1:*:*:*:*:*:*
  Yes
-
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:20.1:r2:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos_os_evolved:20.2:r1:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos_os_evolved:20.2:r2:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos_os_evolved:20.3:r2:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:juniper:junos_os_evolved:20.4:r1:*:*:*:*:*:*
  Yes
-
cpe:2.3:h:juniper:ptx10008:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:juniper:ptx10003:-:*:*:*:*:*:*:*
  No
-