CVE-2024-47505

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

Published Oct 11, 2024 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

The following software releases have been updated to resolve this specific issue: 21.4R3-S7-EVO, 22.1R3-S6-EVO, 22.2R3-EVO, 22.3R3-EVO, 22.4R2-EVO, 23.2R1-EVO, and all subsequent releases.


Vendor Workaround

There are no known workarounds for this issue. To reduce the risk of exploitation of this issue, use access lists or firewall filters to limit access to only trusted networks, hosts and users.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-42508 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.
References
History
Type Values Removed Values Added
First Time appeared Juniper
Juniper junos Os Evolved
CPEs cpe:2.3:o:juniper:junos_os_evolved:*:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.1:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.1:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.1:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.1:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.1:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.1:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.1:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.1:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.1:r3-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.1:r3-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.1:r3-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.1:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.4:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.4:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.4:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.4:r1:*:*:*:*:*:*
Vendors & Products Juniper
Juniper junos Os Evolved
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Junos OS Evolved: Specific low privileged CLI commands and SNMP GET requests can trigger a resource leak #1
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS: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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
juniper
Published
Updated
Oct 11, 2024, 5:18 PM
Reserved
Sep 25, 2024, 3:26 PM
Status
Analyzed
Published
Oct 11, 2024, 4:15 PM
Modified
Jun 17, 2026, 7:57 AM