CVE-2023-22412

Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS on MX Series and SRX Series versions prior to 20.4R3-S4 Juniper Networks Junos OS on MX Series and SRX Series versions prior to 21.1R3-S3 Juniper Networks Junos OS on MX Series and SRX Series versions prior to 21.2R3-S2 Juniper Networks Junos OS on MX Series and SRX Series versions prior to 21.3R3 Juniper Networks Junos OS on MX Series and SRX Series versions prior to 21.4R3 Juniper Networks Junos OS on MX Series and SRX Series versions prior to 22.1R2

Description An Improper Locking vulnerability in the SIP ALG of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause a flow processing daemon crash and thereby a Denial of Service condition. This issue occurs when SIP ALG is enabled and specific SIP messages are processed simultaneously. Continued receipt of these specific packets will cause a sustained Denial of Service condition.

Recommendations For versions prior to 20.4R3-S4, update to 20.4R3-S4 or later. For versions prior to 21.1R3-S3, update to 21.1R3-S3 or later. For versions prior to 21.2R3-S2, update to 21.2R3-S2 or later. For versions prior to 21.3R3, update to 21.3R3 or later. For versions prior to 21.4R3, update to 21.4R3 or later. For versions prior to 22.1R2, update to 22.1R2 or later. As a temporary workaround, consider disabling the SIP ALG feature until a patch is available.