CVE-2023-44199

published 2023-10-13

CVE-2023-44199: 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…

Priority P3 44 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

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.

Affected

17 ranges

Vendor	Product	Version range	Fixed in
juniper	junos	< 20.4	20.4
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos_os	—	—
juniper	mx_series	—	—
juniper_networks	junos_os	< 20.4R3-S4	20.4R3-S4
juniper_networks	junos_os	>= 21.1R1 < 21.1*	21.1*
juniper_networks	junos_os	>= 21.2 < 21.2R3-S2	21.2R3-S2
juniper_networks	junos_os	>= 21.3 < 21.3R3-S5	21.3R3-S5
juniper_networks	junos_os	>= 21.4 < 21.4R3	21.4R3
juniper_networks	junos_os	>= 22.1 < 22.1R3	22.1R3
juniper_networks	junos_os	>= 22.2 < 22.2R1-S1, 22.2R2	22.2R1-S1, 22.2R2

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