Riskcovery

CVE-2023-44203

Junos OS: QFX5000 Series, EX2300, EX3400, EX4100, EX4400 and EX4600: Packet flooding will occur when IGMP traffic is sent to an isolated VLAN

State
Published
Severity
6.5 Medium
Published
Oct 12, 2023
Updated
Sep 17, 2024
Reserved
Sep 26, 2023

Read the record on cve.org

Description

An Improper Check or Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on QFX5000 Series, EX2300, EX3400, EX4100, EX4400 and EX4600 allows a adjacent attacker to send specific traffic, which leads to packet flooding, resulting in a Denial of Service (DoS).

When a specific IGMP packet is received in an isolated VLAN, it is duplicated to all other ports under the primary VLAN, which causes a flood.

This issue affects QFX5000 series, EX2300, EX3400, EX4100, EX4400 and EX4600 platforms only.

This issue affects Juniper Junos OS on on QFX5000 Series, EX2300, EX3400, EX4100, EX4400 and EX4600:

* All 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-S5; * 21.4 versions prior to 21.4R3-S2; * 22.1 versions prior to 22.1R3; * 22.2 versions prior to 22.2R3; * 22.3 versions prior to 22.3R2.

Scores

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

Weaknesses

  • CWE-703 Improper Check or Handling of Exceptional Conditions

Affected Products

ProductVersions
Junos OSJuniper Networks
  • before 20.4R3-S5Affected
  • 21.1 to before 21.1R3-S4Affected
  • 21.2 to before 21.2R3-S3Affected
  • 21.3 to before 21.3R3-S5Affected
  • 21.4 to before 21.4R3-S2Affected
  • 22.1 to before 22.1R3Affected
  • 22.2 to before 22.2R3Affected
  • 22.3 to before 22.3R2Affected

References

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