An Incomplete Cleanup vulnerability in Nonstop active routing (NSR) component of Juniper Networks Junos OS allows an adjacent, unauthenticated attacker to cause memory leak leading to Denial of Service (DoS).
On all Junos OS platforms, when NSR is enabled, a BGP flap will cause memory leak. A manual reboot of the system will restore the services.
Note: NSR is not supported on the SRX Series and is therefore not affected by this vulnerability.
The memory usage can be monitored using the below commands.
user@host> show chassis routing-engine no-forwarding
user@host> show system memory | no-more
This issue affects:
Juniper Networks Junos OS
* 21.2 versions earlier than 21.2R3-S5;
* 21.3 versions earlier than 21.3R3-S4;
* 21.4 versions earlier than 21.4R3-S4;
* 22.1 versions earlier than 22.1R3-S2;
* 22.2 versions earlier than 22.2R3-S2;
* 22.3 versions earlier than 22.3R2-S1, 22.3R3;
* 22.4 versions earlier than 22.4R1-S2, 22.4R2.
This issue does not affect Junos OS versions earlier than 20.4R3-S7.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: juniper
Published: 2024-01-12T00:57:00.195Z
Updated: 2024-08-01T22:27:35.601Z
Reserved: 2023-12-27T19:38:25.710Z
Link: CVE-2024-21617
Vulnrichment
No data.
NVD
Status : Modified
Published: 2024-01-12T01:15:50.230
Modified: 2024-11-21T08:54:43.923
Link: CVE-2024-21617
Redhat
No data.