CVE-2024-21586 Information

Description

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated network-based attacker to cause a Denial-of-Service (DoS).

If an SRX Series 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.

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

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://supportportal.juniper.net/JSA83195

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5