Riskcovery

CVE-2023-44199

Junos OS: MX Series: In a PTP scenario a prolonged routing protocol churn can trigger an FPC reboot

State
Published
Severity
7.5 High
Published
Oct 12, 2023
Updated
Sep 18, 2024
Reserved
Sep 26, 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 a network-based, unauthenticated attacker to cause a Denial of Service (DoS).

On Junos MX Series platforms with Precision Time Protocol (PTP) configured, a prolonged routing protocol churn can lead to an FPC crash and restart.

This issue affects Juniper Networks Junos OS on MX Series:

* All versions prior to 20.4R3-S4; * 21.1 version 21.1R1 and later versions; * 21.2 versions prior to 21.2R3-S2; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R3; * 22.1 versions prior to 22.1R3; * 22.2 versions prior to 22.2R1-S1, 22.2R2.

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 20.4R3-S4Affected
  • 21.1R1 to before 21.1*Affected
  • 21.2 to before 21.2R3-S2Affected
  • 21.3 to before 21.3R3-S5Affected
  • 21.4 to before 21.4R3Affected
  • 22.1 to before 22.1R3Affected
  • 22.2 to before 22.2R1-S1, 22.2R2Affected

References

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