VYPR
Unrated severityNVD Advisory· Published Apr 17, 2023· Updated Feb 5, 2025

Junos OS: MX Series: If a specific traffic rate goes above the DDoS threshold it will lead to an FPC crash

CVE-2023-28976

Description

An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). If specific traffic is received on MX Series and its rate exceeds the respective DDoS protection limit the ingress PFE will crash and restart. Continued receipt of this traffic will create a sustained DoS condition. This issue affects Juniper Networks Junos OS on MX Series: All versions prior to 19.1R3-S10; 19.2 versions prior to 19.2R3-S7; 19.3 versions prior to 19.3R3-S8; 19.4 versions prior to 19.4R3-S11; 20.2 versions prior to 20.2R3-S5; 20.4 versions prior to 20.4R3-S6; 21.1 versions prior to 21.1R3-S5; 21.2 versions prior to 21.2R3-S4; 21.3 versions prior to 21.3R3; 21.4 versions prior to 21.4R3; 22.1 versions prior to 22.1R2.

Affected products

2
  • Juniper Networks/Junosllm-fuzzy2 versions
    <19.1R3-S10, 19.2 <19.2R3-S7, 19.3 <19.3R3-S8, 19.4 <19.4R3-S11, 20.2 <20.2R3-S5, 20.4 <20.4R3-S6, 21.1 <21.1R3-S5, 21.2 <21.2R3-S4, 21.3 <21.3R3, 21.4 <21.4R3, 22.1 <22.1R2+ 1 more
    • (no CPE)range: <19.1R3-S10, 19.2 <19.2R3-S7, 19.3 <19.3R3-S8, 19.4 <19.4R3-S11, 20.2 <20.2R3-S5, 20.4 <20.4R3-S6, 21.1 <21.1R3-S5, 21.2 <21.2R3-S4, 21.3 <21.3R3, 21.4 <21.4R3, 22.1 <22.1R2
    • (no CPE)range: unspecified

Patches

Vulnerability mechanics

References

1

News mentions

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