Riskcovery

CVE-2023-28976

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

State
Published
Severity
7.5 High
Published
Apr 17, 2023
Updated
Feb 5, 2025
Reserved
Mar 29, 2023

Read the record on cve.org

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.

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-754 Improper Check for Unusual or Exceptional Conditions

Affected Products

ProductVersions
Junos OSJuniper Networks
  • before 19.1R3-S10Affected
  • 19.2 to before 19.2R3-S7Affected
  • 19.3 to before 19.3R3-S8Affected
  • 19.4 to before 19.4R3-S11Affected
  • 20.2 to before 20.2R3-S5Affected
  • 20.4 to before 20.4R3-S6Affected
  • 21.1 to before 21.1R3-S5Affected
  • 21.2 to before 21.2R3-S4Affected
  • 21.3 to before 21.3R3Affected
  • 21.4 to before 21.4R3Affected
  • 22.1 to before 22.1R2Affected

References

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