Unknown
CVE-2024-39536
CVE ID
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Unknown
(0 users assessed)
Unknown
(0 users assessed)CVE-2024-39536
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
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.
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CVSS V3 Severity and Metrics
General Information
Vendors
- Juniper Networks
Products
- Junos OS,
- Junos OS Evolved
References
Miscellaneous
Additional Info
Technical Analysis
Report as Exploited in the Wild
CVE ID
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