Executive Summary

Informations
Name CVE-2024-47493 First vendor Publication 2024-10-11
Vendor Cve Last vendor Modification 2024-11-08

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 3.6 Temporal Score 6.5
Exploitabality Sub Score 2.8
 
Attack Vector Adjacent Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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. Â

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:Â

* All versions before 21.2R3-S7,Â
* from 21.4 before 21.4R3-S6,Â
* from 22.1 before 22.1R3-S5,Â
* from 22.2 before 22.2R3-S3,Â
* from 22.3 before 22.3R3-S2,Â
* from 22.4 before 22.4R3,Â
* from 23.2 before 23.2R2,Â
* from 23.4 before 23.4R2.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-47493

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-401 Failure to Release Memory Before Removing Last Reference ('Memory Leak')

Sources (Detail)

https://supportportal.juniper.net/
https://www.juniper.net/documentation/us/en/software/junos/interfaces-link-mu...
Source Url

Alert History

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0
1
2
Date Informations
2024-11-08 21:28:06
  • Multiple Updates
2024-10-15 17:27:28
  • Multiple Updates
2024-10-11 21:27:27
  • First insertion