cve-2024-21599
Vulnerability from cvelistv5
Published
2024-01-12 00:53
Modified
2024-08-01 22:27
Severity ?
6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS score ?
0.05% (0.1596)
Summary
A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS). If an MX Series device receives PTP packets on an MPC3E that doesn't support PTP this causes a memory leak which will result in unpredictable behavior and ultimately in an MPC crash and restart. To monitor for this issue, please use the following FPC vty level commands: show heap shows an increase in "LAN buffer" utilization and show clksync ptp nbr-upd-info shows non-zero "Pending PFEs" counter. This issue affects Juniper Networks Junos OS on MX Series with MPC3E: * All versions earlier than 20.4R3-S3; * 21.1 versions earlier than 21.1R3-S4; * 21.2 versions earlier than 21.2R3; * 21.3 versions earlier than 21.3R2-S1, 21.3R3; * 21.4 versions earlier than 21.4R2; * 22.1 versions earlier than 22.1R2.
References
sirt@juniper.nethttps://supportportal.juniper.net/JSA75740Vendor Advisory
sirt@juniper.nethttps://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:LThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://supportportal.juniper.net/JSA75740Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:LThird Party Advisory
Impacted products
Vendor Product Version
Juniper Networks Junos OS Version: 0   ≤
Version: 21.1   ≤
Version: 21.2   ≤
Version: 21.3   ≤
Version: 21.4   ≤
Version: 22.1   ≤
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Si un dispositivo de la serie MX recibe paquetes PTP en un MPC3E que no admite PTP, esto provoca una pérdida de memoria que resultará en un comportamiento impredecible y, en última instancia, en un bloqueo y reinicio del MPC. Para monitorear este problema, utilice los siguientes comandos de nivel FPC vty: show heap muestra un aumento en la utilización del \\\"LAN buffer\\\" y show clksync ptp nbr-upd-info muestra un contador de \\\"Pending PFEs\\\" distinto de cero. 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   },
}


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