An Allocation of Resources Without Limits or Throttling vulnerability in the PFE management daemon (evo-pfemand) of Juniper Networks Junos OS Evolved allows an authenticated, network-based attacker to cause an FPC crash leading to a Denial of Service (DoS).When specific SNMP GET operations or specific low-priviledged CLI commands are executed, a GUID resource leak will occur, eventually leading to exhaustion and resulting in FPCs to hang. Affected FPCs need to be manually restarted to recover.
GUID exhaustion will trigger a syslog message like one of the following:
evo-pfemand[<pid>]: get_next_guid: Ran out of Guid Space ...
evo-aftmand-zx[<pid>]: get_next_guid: Ran out of Guid Space ...
The leak can be monitored by running the following command and taking note of the values in the rightmost column labeled Guids:
user@host> show platform application-info allocations app evo-pfemand/evo-pfemand
In case one or more of these values are constantly increasing the leak is happening.
This issue affects Junos OS Evolved:
  *  All versions before 21.4R2-EVO,
  *  22.1 versions before 22.1R2-EVO.
Please note that this issue is similar to, but different from CVE-2024-47505 and CVE-2024-47508.
                
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Affected Vendors & Products
References
        | Link | Providers | 
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| https://supportportal.juniper.net/ | 
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History
                    Fri, 11 Oct 2024 21:15:00 +0000
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Fri, 11 Oct 2024 15:45:00 +0000
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| Description | An Allocation of Resources Without Limits or Throttling vulnerability in the PFE management daemon (evo-pfemand) of Juniper Networks Junos OS Evolved allows an authenticated, network-based attacker to cause an FPC crash leading to a Denial of Service (DoS).When specific SNMP GET operations or specific low-priviledged CLI commands are executed, a GUID resource leak will occur, eventually leading to exhaustion and resulting in FPCs to hang. Affected FPCs need to be manually restarted to recover. GUID exhaustion will trigger a syslog message like one of the following: evo-pfemand[<pid>]: get_next_guid: Ran out of Guid Space ... evo-aftmand-zx[<pid>]: get_next_guid: Ran out of Guid Space ... The leak can be monitored by running the following command and taking note of the values in the rightmost column labeled Guids: user@host> show platform application-info allocations app evo-pfemand/evo-pfemand In case one or more of these values are constantly increasing the leak is happening. This issue affects Junos OS Evolved: * All versions before 21.4R2-EVO, * 22.1 versions before 22.1R2-EVO. Please note that this issue is similar to, but different from CVE-2024-47505 and CVE-2024-47508. | |
| Title | Junos OS Evolved: Specific low privileged CLI commands and SNMP GET requests can trigger a resource leak #3 | |
| Weaknesses | CWE-770 | |
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        cvssV3_1
         
 
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Status: PUBLISHED
Assigner: juniper
Published:
Updated: 2024-10-11T17:17:22.372Z
Reserved: 2024-09-25T15:26:52.610Z
Link: CVE-2024-47509
Updated: 2024-10-11T17:17:18.286Z
Status : Awaiting Analysis
Published: 2024-10-11T16:15:13.187
Modified: 2024-10-15T12:58:51.050
Link: CVE-2024-47509
No data.