CVE-2024-21586

published 2024-07-01

CVE-2024-21586: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX Series and NFX…

Priority P3 46 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 SRX Series and NFX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).

If an affected device receives specific valid traffic destined to the device, it will cause the PFE to crash and restart. Continued receipt and processing of this traffic will create a sustained DoS condition.

This issue affects Junos OS on SRX Series:

* 21.4 versions before 21.4R3-S7.9,
* 22.1 versions before 22.1R3-S5.3,
* 22.2 versions before 22.2R3-S4.11,
* 22.3 versions before 22.3R3,
* 22.4 versions before 22.4R3.

This issue affects Junos OS on NFX Series:

* 21.4 versions before 21.4R3-S8,
* 22.1 versions after 22.1R1,
* 22.2 versions before 22.2R3-S5,
* 22.3 versions before 22.3R3,
* 22.4 versions before 22.4R3.

Junos OS versions prior to 21.4R1 are not affected by this issue.

Affected

15 ranges

Vendor	Product	Version range	Fixed in
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos_os	—	—
juniper	srx_series	—	—
juniper_networks	junos_os	—	—
juniper_networks	junos_os	>= 21.4 < 21.4R3-S7.9	21.4R3-S7.9
juniper_networks	junos_os	>= 21.4 < 21.4R3-S8	21.4R3-S8
juniper_networks	junos_os	>= 22.1 < 22.1R3-S5.3	22.1R3-S5.3
juniper_networks	junos_os	>= 22.2 < 22.2R3-S4.11	22.2R3-S4.11
juniper_networks	junos_os	>= 22.2 < 22.2R3-S5	22.2R3-S5
juniper_networks	junos_os	>= 22.3 < 22.3R3	22.3R3
juniper_networks	junos_os	>= 22.4 < 22.4R3	22.4R3

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