A Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in the Flow-processing Daemon (flowd) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (Dos). On SRX Series devices when two different threads try to simultaneously process a queue which is used for TCP events flowd will crash. One of these threads can not be triggered externally, so the exploitation of this race condition is outside the attackers direct control. Continued exploitation of this issue will lead to a sustained DoS. This issue affects Juniper Networks Junos OS: * 21.2 versions earlier than 21.2R3-S5; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3-S4; * 22.1 versions earlier than 22.1R3-S3; * 22.2 versions earlier than 22.2R3-S1; * 22.3 versions earlier than 22.3R2-S2, 22.3R3; * 22.4 versions earlier than 22.4R2-S1, 22.4R3. This issue does not affect Juniper Networks Junos OS versions earlier than 21.2R1.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: juniper

Published: 2024-01-12T00:53:54.163Z

Updated: 2024-08-01T22:27:35.522Z

Reserved: 2023-12-27T19:38:25.706Z

Link: CVE-2024-21601

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2024-01-12T01:15:48.043

Modified: 2024-01-19T22:57:04.600

Link: CVE-2024-21601

cve-icon Redhat

No data.