Product Affected

This issue affects Junos OS , 20.1, 20.2, 20.3, 20.4, 21.1, 21.2, 21.3, 21.4, 22.1, 22.2. Affected platforms: PTX1000 Series, QFX10000 Series.
Medium
6.5 (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Problem

An Improper Handling of Missing Values vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an adjacent, unauthenticated attacker to cause a dcpfe process core and thereby a Denial of Service (DoS). Continued receipt of these specific frames will cause a sustained Denial of Service condition.
 

This issue occurs when a specific malformed ethernet frame is received.


This issue affects Juniper Networks Junos OS on QFX10000 Series, PTX1000 Series Series:

  • All versions prior to 19.4R3-S10;
  • 20.1 version 20.1R1 and later versions;
  • 20.2 versions prior to 20.2R3-S6;
  • 20.3 versions prior to 20.3R3-S6;
  • 20.4 versions prior to 20.4R3-S5;
  • 21.1 versions prior to 21.1R3-S4;
  • 21.2 versions prior to 21.2R3-S3;
  • 21.3 versions prior to 21.3R3-S3;
  • 21.4 versions prior to 21.4R3-S1;
  • 22.1 versions prior to 22.1R2-S1, 22.1R3;
  • 22.2 versions prior to 22.2R1-S2, 22.2R2.


Juniper SIRT is not aware of any malicious exploitation of this vulnerability.


This issue was seen during production usage.


This issue has been assigned CVE-2023-1697.

Solution

The following software releases have been updated to resolve this specific issue: 19.4R3-S10, 20.2R3-S6, 20.3R3-S6, 20.4R3-S5, 21.1R3-S4, 21.2R3-S3, 21.3R3-S3, 21.4R3-S1, 22.1R2-S1, 22.1R3, 22.2R1-S2, 22.2R2, 22.3R1, and all subsequent releases.


This issue is being tracked as 1667678


Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of Engineering (EOE) or End of Life (EOL).


 

Workaround

There are no known workarounds for this issue.

Severity Assessment

Information for how Juniper Networks uses CVSS can be found at KB 16446 [juniper.net] "Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories."

Modification History

  • 2023-04-12: Initial Publication