A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of the Juniper Networks Junos OS on the MX Series platforms with Trio-based FPCs allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).
In case of channelized Modular Interface Cards (MICs), every physical interface flap operation will leak heap memory. Over a period of time, continuous physical interface flap operations causes local FPC  to eventually run out of memory and crash.  
Below CLI command can be used to check the memory usage over a period of time:
  user@host> show chassis fpc
                Temp  CPU Utilization (%)   CPU Utilization (%)  Memory   
Utilization (%)
  Slot State      (C)  Total  Interrupt      1min   5min  
15min DRAM (MB) Heap     Buffer
  0 
Online       43     41         
2                           2048       49         14
  1 
Online       43     41         
2                          
2048       49         14
  2 
Online       43     41         
2                          
2048       49         14
This issue affects Junos OS on MX Series: 
  *  All versions before 21.2R3-S7, 
  *  from 21.4 before 21.4R3-S6, 
  *  from 22.1 before 22.1R3-S5, 
  *  from 22.2 before 22.2R3-S3, 
  *  from 22.3 before 22.3R3-S2, 
  *  from 22.4 before 22.4R3, 
  *  from 23.2 before 23.2R2, 
  *  from 23.4 before 23.4R2.
                
            Metrics
Affected Vendors & Products
References
        History
                    Fri, 08 Nov 2024 17:30:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Description | A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of the Juniper Networks Junos OS on the SRX5K, SRX4600 and MX Series platforms with Trio-based FPCs allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). In case of channelized Modular Interface Cards (MICs), every physical interface flap operation will leak heap memory. Over a period of time, continuous physical interface flap operations causes local FPC to eventually run out of memory and crash. Below CLI command can be used to check the memory usage over a period of time: user@host> show chassis fpc Temp CPU Utilization (%) CPU Utilization (%) Memory Utilization (%) Slot State (C) Total Interrupt 1min 5min 15min DRAM (MB) Heap Buffer 0 Online 43 41 2 2048 49 14 1 Online 43 41 2 2048 49 14 2 Online 43 41 2 2048 49 14 This issue affects Junos OS on SRX5K, SRX4600 and MX Series: * All versions before 21.2R3-S7, * from 21.4 before 21.4R3-S6, * from 22.1 before 22.1R3-S5, * from 22.2 before 22.2R3-S3, * from 22.3 before 22.3R3-S2, * from 22.4 before 22.4R3, * from 23.2 before 23.2R2, * from 23.4 before 23.4R2. | A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of the Juniper Networks Junos OS on the MX Series platforms with Trio-based FPCs allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). In case of channelized Modular Interface Cards (MICs), every physical interface flap operation will leak heap memory. Over a period of time, continuous physical interface flap operations causes local FPC to eventually run out of memory and crash. Below CLI command can be used to check the memory usage over a period of time: user@host> show chassis fpc Temp CPU Utilization (%) CPU Utilization (%) Memory Utilization (%) Slot State (C) Total Interrupt 1min 5min 15min DRAM (MB) Heap Buffer 0 Online 43 41 2 2048 49 14 1 Online 43 41 2 2048 49 14 2 Online 43 41 2 2048 49 14 This issue affects Junos OS on MX Series: * All versions before 21.2R3-S7, * from 21.4 before 21.4R3-S6, * from 22.1 before 22.1R3-S5, * from 22.2 before 22.2R3-S3, * from 22.3 before 22.3R3-S2, * from 22.4 before 22.4R3, * from 23.2 before 23.2R2, * from 23.4 before 23.4R2. | 
| Title | Junos OS: SRX5K, SRX4600 and MX Series: Trio-based FPCs: Continuous physical Interface flaps causes local FPC to crash | Junos OS: MX Series: Trio-based FPCs: Continuous physical Interface flaps causes local FPC to crash | 
Fri, 11 Oct 2024 21:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Metrics | ssvc 
 | 
Fri, 11 Oct 2024 15:45:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Description | A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of the Juniper Networks Junos OS on the SRX5K, SRX4600 and MX Series platforms with Trio-based FPCs allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). In case of channelized Modular Interface Cards (MICs), every physical interface flap operation will leak heap memory. Over a period of time, continuous physical interface flap operations causes local FPC to eventually run out of memory and crash. Below CLI command can be used to check the memory usage over a period of time: user@host> show chassis fpc Temp CPU Utilization (%) CPU Utilization (%) Memory Utilization (%) Slot State (C) Total Interrupt 1min 5min 15min DRAM (MB) Heap Buffer 0 Online 43 41 2 2048 49 14 1 Online 43 41 2 2048 49 14 2 Online 43 41 2 2048 49 14 This issue affects Junos OS on SRX5K, SRX4600 and MX Series: * All versions before 21.2R3-S7, * from 21.4 before 21.4R3-S6, * from 22.1 before 22.1R3-S5, * from 22.2 before 22.2R3-S3, * from 22.3 before 22.3R3-S2, * from 22.4 before 22.4R3, * from 23.2 before 23.2R2, * from 23.4 before 23.4R2. | |
| Title | Junos OS: SRX5K, SRX4600 and MX Series: Trio-based FPCs: Continuous physical Interface flaps causes local FPC to crash | |
| Weaknesses | CWE-401 | |
| References |  | |
| Metrics | cvssV3_1 
 
 | 
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: juniper
Published: 2024-10-11T15:24:02.438Z
Updated: 2024-11-08T17:17:27.242Z
Reserved: 2024-09-25T15:26:52.608Z
Link: CVE-2024-47493
 Vulnrichment
                        Vulnrichment
                    Updated: 2024-10-11T17:49:02.624Z
 NVD
                        NVD
                    Status : Awaiting Analysis
Published: 2024-10-11T16:15:09.320
Modified: 2024-11-08T18:15:17.240
Link: CVE-2024-47493
 Redhat
                        Redhat
                    No data.
 ReportizFlow
ReportizFlow