CVE-2024-39549 — Junos OS and Junos OS Evolved: Receipt of malformed BGP path attributes leads to a memory leak

Affected: Juniper Networks Junos OS, Juniper Networks Junos OS Evolved, juniper junos_os, juniper junos_os_evolved

A Missing Release of Memory after Effective Lifetime vulnerability in the routing process daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to send a malformed BGP Path attribute update which allocates memory used to log the bad path attribute. This memory is not properly freed in all circumstances, leading to a Denial of Service (DoS).

Consumed memory can be freed by manually restarting Routing Protocol Daemon (rpd).

Memory utilization could be monitored by: user@host> show system memory or show system monitor memory status

This issue affects:

Junos OS: * All versions before 21.2R3-S8, * from 21.4 before 21.4R3-S8,

* from 22.2 before 22.2R3-S4, * from 22.3 before 22.3R3-S3, * from 22.4 before 22.4R3-S3, * from 23.2 before 23.2R2-S1, * from 23.4 before 23.4R1-S2, 23.4R2.

Junos OS Evolved: * All versions before 21.2R3-S8-EVO, * from 21.4 before 21.4R3-S8-EVO, * from 22.2 before 22.2R3-S4-EVO, * from 22.3 before 22.3R3-S3-EVO, * from 22.4 before 22.4R3-S3-EVO,

* from 23.2 before 23.2R2-S1-EVO, * from 23.4 before 23.4R1-S2-EVO, 23.4R2-EVO.

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CVE-2024-39549 — Junos OS and Junos OS Evolved: Receipt of malformed BGP path attributes leads to a memory leak