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.
Metrics
Affected Vendors & Products
References
Link | Providers |
---|---|
https://supportportal.juniper.net/JSA82996 |
History
No history.
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
Vulnrichment
Updated: 2024-07-16T18:50:48.166Z
NVD
Status : Awaiting Analysis
Published: 2024-07-11T17:15:11.190
Modified: 2024-11-21T09:27:57.373
Link: CVE-2024-39536
Redhat
No data.