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THREATINT
PUBLISHED

CVE-2024-47505

Junos OS Evolved: Specific low privileged CLI commands and SNMP GET requests can trigger a resource leak #1



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 21.4R3-S7-EVO, * 22.1 versions before 22.1R3-S6-EVO, * 22.2 versions before 22.2R3-EVO,  * 22.3 versions before 22.3R3-EVO, * 22.4 versions before 22.4R2-EVO. Please note that this issue is similar to, but different from CVE-2024-47508 and CVE-2024-47509.

Reserved 2024-09-25 | Published 2024-10-11 | Updated 2024-10-11 | Assigner juniper


MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

HIGH: 7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/RE:M

Problem types

CWE-770 Allocation of Resources Without Limits or Throttling

Product status

Default status
unaffected

21.4 before 21.4R3-S7-EVO
affected

22.1 before 22.1R3-S6-EVO
affected

22.2 before 22.2R3-EVO
affected

22.3 before 22.3R3-EVO
affected

22.4 before 22.4R2-EVO
affected

References

supportportal.juniper.net/ vendor-advisory

cve.org (CVE-2024-47505)

nvd.nist.gov (CVE-2024-47505)

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