A Missing Release of Memory after Effective Lifetime vulnerability in the Periodic Packet Management Daemon (ppmd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a Denial-of-Service (DoS). When a BFD session configured with authentication flaps, ppmd memory can leak. Whether the leak happens depends on a race condition which is outside the attackers control. This issue only affects BFD operating in distributed aka delegated (which is the default behavior) or inline mode. Whether the leak occurs can be monitored with the following CLI command: > show ppm request-queue FPC     Pending-request fpc0                   2 request-total-pending: 2 where a continuously increasing number of pending requests is indicative of the leak.  This issue affects: Junos OS: * All versions before 21.2R3-S8, * 21.4 versions before 21.4R3-S7, * 22.1 versions before 22.1R3-S4, * 22.2 versions before 22.2R3-S4, * 22.3 versions before 22.3R3, * 22.4 versions before 22.4R2-S2, 22.4R3. Junos OS Evolved: * All versions before 21.2R3-S8-EVO, * 21.4-EVO versions before 21.4R3-S7-EVO, * 22.2-EVO versions before 22.2R3-S4-EVO, * 22.3-EVO versions before 22.3R3-EVO, * 22.4-EVO versions before 22.4R3-EVO.
References
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: juniper

Published: 2024-07-11T16:13:24.485Z

Updated: 2024-08-02T04:26:15.613Z

Reserved: 2024-06-25T15:12:53.241Z

Link: CVE-2024-39536

cve-icon Vulnrichment

Updated: 2024-07-16T18:50:48.166Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-07-11T17:15:11.190

Modified: 2024-11-21T09:27:57.373

Link: CVE-2024-39536

cve-icon Redhat

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