CVE-2023-22392

Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS versions prior to 20.4R3-S5 Juniper Networks Junos OS versions prior to 20.4R3-S8 Juniper Networks Junos OS 21.1 versions prior to 21.1R3-S4 Juniper Networks Junos OS 21.2 versions prior to 21.2R3-S2 Juniper Networks Junos OS 21.2 versions prior to 21.2R3-S6 Juniper Networks Junos OS 21.3 versions prior to 21.3R3 Juniper Networks Junos OS 21.3 versions prior to 21.3R3-S5 Juniper Networks Junos OS 21.4 versions prior to 21.4R2-S2, 21.4R3 Juniper Networks Junos OS 21.4 versions prior to 21.4R3-S4 Juniper Networks Junos OS 22.1 versions prior to 22.1R1-S2, 22.1R2 Juniper Networks Junos OS 22.1 versions prior to 22.1R3-S3 Juniper Networks Junos OS 22.2 versions prior to 22.2R3-S1 Juniper Networks Junos OS 22.3 versions prior to 22.3R2-S2, 22.3R3 Juniper Networks Junos OS 22.4 versions prior to 22.4R2

Description A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS). This issue affects PTX1000, PTX10002, and PTX10004, PTX10008 and PTX10016 with LC110x FPCs, as well as PTX3000, PTX5000, QFX10000. Once a flow-route is received over an established BGP session and an attempt is made to install the resulting filter into the PFE, FPC heap memory is leaked. The FPC heap memory can be monitored using the CLI command "show chassis fpc". Specific syslog messages can be observed if the respective filter derived from a flow-route cannot be installed.

Recommendations For Juniper Networks Junos OS versions prior to 20.4R3-S5, update to version 20.4R3-S5 or later. For Juniper Networks Junos OS versions prior to 20.4R3-S8, update to version 20.4R3-S8 or later. For Juniper Networks Junos OS 21.1 versions prior to 21.1R3-S4, update to version 21.1R3-S4 or later. For Juniper Networks Junos OS 21.2 versions prior to 21.2R3-S2, update to version 21.2R3-S2 or later. For Juniper Networks Junos OS 21.2 versions prior to 21.2R3-S6, update to version 21.2R3-S6 or later. For Juniper Networks Junos OS 21.3 versions prior to 21.3R3, update to version 21.3R3 or later. For Juniper Networks Junos OS 21.3 versions prior to 21.3R3-S5, update to version 21.3R3-S5 or later. For Juniper Networks Junos OS 21.4 versions prior to 21.4R2-S2, 21.4R3, update to version 21.4R2-S2, 21.4R3 or later. For Juniper Networks Junos OS 21.4 versions prior to 21.4R3-S4, update to version 21.4R3-S4 or later. For Juniper Networks Junos OS 22.1 versions prior to 22.1R1-S2, 22.1R2, update to version 22.1R1-S2, 22.1R2 or later. For Juniper Networks Junos OS 22.1 versions prior to 22.1R3-S3, update to version 22.1R3-S3 or later. For Juniper Networks Junos OS 22.2 versions prior to 22.2R3-S1, update to version 22.2R3-S1 or later. For Juniper Networks Junos OS 22.3 versions prior to 22.3R2-S2, 22.3R3, update to version 22.3R2-S2, 22.3R3 or later. For Juniper Networks Junos OS 22.4 versions prior to 22.4R2, update to version 22.4R2 or later.