CVE Alert: CVE-2024-47509

Vulnerability Summary: CVE-2024-47509

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[]: get_next_guid: Ran out of Guid Space … evo-aftmand-zx[]: 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.

Affected Endpoints:

• GET operations

Published Date:

10/11/2024, 4:15:13 PM

⚠️ CVSS Score:

Exploit Status:

References:

• https://supportportal.juniper.net/

Recommended Action:

No proposed action available. Please refer to vendor documentation for updates.