CVE-2024-21611

published 2024-01-12

CVE-2024-21611: A Missing Release of Memory after Effective Lifetime vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved…

Priority P3 43 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

A Missing Release of Memory after Effective Lifetime vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).

In a Juniper Flow Monitoring (jflow) scenario route churn that causes BGP next hops to be updated will cause a slow memory leak and eventually a crash and restart of rpd.

Thread level memory utilization for the areas where the leak occurs can be checked using the below command:

user@host> show task memory detail | match so_in
so_in6 28 32 344450 11022400 344760 11032320
so_in 8 16 1841629 29466064 1841734 29467744
This issue affects:

Junos OS

* 21.4 versions earlier than 21.4R3;
* 22.1 versions earlier than 22.1R3;
* 22.2 versions earlier than 22.2R3.

Junos OS Evolved

* 21.4-EVO versions earlier than 21.4R3-EVO;
* 22.1-EVO versions earlier than 22.1R3-EVO;
* 22.2-EVO versions earlier than 22.2R3-EVO.

This issue does not affect:

Juniper Networks Junos OS versions earlier than 21.4R1.

Juniper Networks Junos OS Evolved versions earlier than 21.4R1.

Affected

13 ranges

Vendor	Product	Version range	Fixed in
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos_os	—	—
juniper	junos_os_evolved	—	—
juniper	junos_os_evolved	—	—
juniper	junos_os_evolved	—	—
juniper_networks	junos_os	>= 21.4 < 21.4R3	21.4R3
juniper_networks	junos_os	>= 22.1 < 22.1R3	22.1R3
juniper_networks	junos_os	>= 22.2 < 22.2R3	22.2R3
juniper_networks	junos_os_evolved	>= 21.4-EVO < 21.4R3-EVO	21.4R3-EVO
juniper_networks	junos_os_evolved	>= 22.1-EVO < 22.1R3-EVO	22.1R3-EVO
juniper_networks	junos_os_evolved	>= 22.2-EVO < 22.2R3-EVO	22.2R3-EVO

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