Riskcovery

CVE-2023-44191

Junos OS: QFX5000 Series and EX4000 Series: Denial of Service (DoS) on a large scale VLAN due to PFE hogging

State
Published
Severity
7.5 High
Published
Oct 12, 2023
Updated
Sep 19, 2024
Reserved
Sep 26, 2023

Read the record on cve.org

Description

An Allocation of Resources Without Limits or Throttling vulnerability in Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).

On all Junos OS QFX5000 Series and EX4000 Series platforms, when a high number of VLANs are configured, a specific DHCP packet will cause PFE hogging which will lead to dropping of socket connections.

This issue affects:

Juniper Networks Junos OS on QFX5000 Series and EX4000 Series

* 21.1 versions prior to 21.1R3-S5; * 21.2 versions prior to 21.2R3-S5; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R3-S4; * 22.1 versions prior to 22.1R3-S3; * 22.2 versions prior to 22.2R3-S1; * 22.3 versions prior to 22.3R2-S2, 22.3R3; * 22.4 versions prior to 22.4R2.

This issue does not affect Juniper Networks Junos OS versions prior to 21.1R1

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hjuniper

Weaknesses

  • CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

ProductVersions
Junos OSJuniper Networks
  • before 21.1R1Not affected
  • 21.1 to before 21.1R3-S5Affected
  • 21.2 to before 21.2R3-S5Affected
  • 21.3 to before 21.3R3-S5Affected
  • 21.4 to before 21.4R3-S4Affected
  • 22.1 to before 22.1R3-S3Affected
  • 22.2 to before 22.2R3-S1Affected
  • 22.3 to before 22.3R2-S2, 22.3R3Affected
  • 22.4 to before 22.4R2Affected

References

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