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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2023-44191

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

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Status
Published
Published
Updated
Assigning organization
juniper

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

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Juniper Networks Junos OS

Default version status: unaffected

  • 0 to < 21.1R1unaffected
  • 21.1 to < 21.1R3-S5affected
  • 21.2 to < 21.2R3-S5affected
  • 21.3 to < 21.3R3-S5affected
  • 21.4 to < 21.4R3-S4affected
  • 22.1 to < 22.1R3-S3affected
  • 22.2 to < 22.2R3-S1affected
  • 22.3 to < 22.3R2-S2, 22.3R3affected
  • 22.4 to < 22.4R2affected

References