A Missing Release of Memory after Effective Lifetime vulnerability in the Juniper Tunnel Driver (jtd) of Juniper Networks Junos OS Evolved allows an unauthenticated network-based attacker to cause Denial of Service. 
Receipt of specifically malformed IPv6 packets, destined to the device, causes kernel memory to not be freed, resulting in memory exhaustion leading to a system crash and Denial of Service (DoS). Continuous receipt and processing of these packets will continue to exhaust kernel memory, creating a sustained Denial of Service (DoS) condition.
This issue only affects systems configured with IPv6.
This issue affects Junos OS Evolved: 
  *  from 22.4-EVO before 22.4R3-S5-EVO, 
  *  from 23.2-EVO before 23.2R2-S2-EVO, 
  *  from 23.4-EVO before 23.4R2-S2-EVO, 
  *  from 24.2-EVO before 24.2R1-S2-EVO, 24.2R2-EVO.
This issue does not affect Juniper Networks Junos OS Evolved versions prior to 22.4R1-EVO.
                
            Metrics
Affected Vendors & Products
References
        | Link | Providers | 
|---|---|
| https://supportportal.juniper.net/JSA92869 | 
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History
                    Thu, 09 Jan 2025 20:15:00 +0000
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        ssvc
         
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Thu, 09 Jan 2025 17:00:00 +0000
| Type | Values Removed | Values Added | 
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| Description | A Missing Release of Memory after Effective Lifetime vulnerability in the Juniper Tunnel Driver (jtd) of Juniper Networks Junos OS Evolved allows an unauthenticated network-based attacker to cause Denial of Service. Receipt of specifically malformed IPv6 packets, destined to the device, causes kernel memory to not be freed, resulting in memory exhaustion leading to a system crash and Denial of Service (DoS). Continuous receipt and processing of these packets will continue to exhaust kernel memory, creating a sustained Denial of Service (DoS) condition. This issue only affects systems configured with IPv6. This issue affects Junos OS Evolved: * from 22.4-EVO before 22.4R3-S5-EVO, * from 23.2-EVO before 23.2R2-S2-EVO, * from 23.4-EVO before 23.4R2-S2-EVO, * from 24.2-EVO before 24.2R1-S2-EVO, 24.2R2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 22.4R1-EVO. | |
| Title | Junos OS Evolved: Receipt of specifically malformed IPv6 packets causes kernel memory exhaustion leading to Denial of Service | |
| Weaknesses | CWE-401 | |
| References | 
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| Metrics | 
        
        cvssV3_1
         
 
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Status: PUBLISHED
Assigner: juniper
Published:
Updated: 2025-01-09T19:22:22.119Z
Reserved: 2024-12-26T14:47:11.669Z
Link: CVE-2025-21599
Updated: 2025-01-09T19:20:23.073Z
Status : Received
Published: 2025-01-09T17:15:18.770
Modified: 2025-01-09T17:15:18.770
Link: CVE-2025-21599
No data.