QID 44118

Date Published: 2023-11-15

QID 44118: Juniper Network Operating System (Junos OS) The IGMP Packet Flooding Leads to a Denial of Service (DoS) (JSA73169)

An Improper Check or Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS 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:
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.

QID detection logic: (Authenticated)

It checks for vulnerable Junos OS version.

The consequences of the IGMP packet Flooding Leads to a Denial of Service (DoS).

  • CVSS V3 rated as High - 6.5 severity.
  • CVSS V2 rated as High - 6.1 severity.
  • Solution
    Vendor has released patch addressing the vulnerabilities, for more information please refer JSA73169

    Vendor References

    CVEs related to QID 44118

    Software Advisories
    Advisory ID Software Component Link
    JSA73169 URL Logo supportportal.juniper.net/JSA73169
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