An Uncontrolled Resource Consumption vulnerability in the Layer 2 Address Learning Daemon (l2ald) of Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a memory leak, eventually exhausting all system memory, leading to a system crash and Denial of Service (DoS). Certain MAC table updates cause a small amount of memory to leak.  Once memory utilization reaches its limit, the issue will result in a system crash and restart. To identify the issue, execute the CLI command: user@device> show platform application-info allocations app l2ald-agent EVL Object Allocation Statistics: Node   Application     Context Name                               Live   Allocs   Fails     Guids re0   l2ald-agent               net::juniper::rtnh::L2Rtinfo       1069096 1069302   0         1069302 re0   l2ald-agent               net::juniper::rtnh::NHOpaqueTlv     114     195       0         195 This issue affects Junos OS Evolved: * All versions before 21.4R3-S8-EVO, * from 22.2-EVO before 22.2R3-S4-EVO, * from 22.3-EVO before 22.3R3-S3-EVO, * from 22.4-EVO before 22.4R3-EVO, * from 23.2-EVO before 23.2R2-EVO.
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History

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cve-icon MITRE

Status: PUBLISHED

Assigner: juniper

Published: 2024-07-10T22:39:48.575Z

Updated: 2024-08-02T04:26:15.916Z

Reserved: 2024-06-25T15:12:53.247Z

Link: CVE-2024-39557

cve-icon Vulnrichment

Updated: 2024-07-12T20:01:44.254Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-07-10T23:15:12.370

Modified: 2024-07-11T13:05:54.930

Link: CVE-2024-39557

cve-icon Redhat

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