CVE-2024-47494

Name of the Vulnerable Software and Affected Versions Junos OS versions prior to 21.4R3-S9 Junos OS versions 22.2 prior to 22.2R3-S5 Junos OS versions 22.3 prior to 22.3R3-S4 Junos OS versions 22.4 prior to 22.4R3-S3 Junos OS versions 23.2 prior to 23.2R2-S2 Junos OS versions 23.4 prior to 23.4R2

Description A Time-of-check Time-of-use (TOCTOU) Race Condition issue in the AgentD process of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) by crashing the FPC, which will recover automatically without user intervention after the crash. The issue is related to synchronization errors when using a shared resource, allowing a remote attacker to exploit the vulnerability and cause a service disruption.

Recommendations For Junos OS versions prior to 21.4R3-S9, update to version 21.4R3-S9 or later. For Junos OS versions 22.2 prior to 22.2R3-S5, update to version 22.2R3-S5 or later. For Junos OS versions 22.3 prior to 22.3R3-S4, update to version 22.3R3-S4 or later. For Junos OS versions 22.4 prior to 22.4R3-S3, update to version 22.4R3-S3 or later. For Junos OS versions 23.2 prior to 23.2R2-S2, update to version 23.2R2-S2 or later. For Junos OS versions 23.4 prior to 23.4R2, update to version 23.4R2 or later.