CVE-2023-44199

High

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductJuniper Junos
PublishedOct 13, 2023
First seenOct 13, 2023
Weakness typeCWE-754CWE-754

How to fix

Update
  • juniper junos20.4 or later

Affected products

ProductAffected versionsFixed in
juniper junosv < 20.4, 20.4, 21.1, 21.2, 21.3, 21.4, 22.1, 22.220.4

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