A Missing Release of Memory after Effective Lifetime vulnerability in the Anti-Virus processing of Juniper Networks Junos OS on SRX Series
allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
On all SRX platforms with Anti-Virus enabled, if a server sends specific content in the HTTP body of a response to a client request, these packets are queued by Anti-Virus processing in Juniper Buffers (jbufs) which are never released. When these jbufs are exhausted, the device stops forwarding all transit traffic.
A jbuf memory leak can be noticed from the following logs:
(<node>.)<fpc> Warning: jbuf pool id <#> utilization level (<current level>%) is above <threshold>%!
To recover from this issue, the affected device needs to be manually rebooted to free the leaked jbufs.
This issue affects Junos OS on SRX Series:
* all versions before 21.2R3-S9,
* 21.4 versions before 21.4R3-S10,
* 22.2 versions before 22.2R3-S6,
* 22.4 versions before 22.4R3-S6,
* 23.2 versions before 23.2R2-S3,
* 23.4 versions before 23.4R2-S3,
* 24.2 versions before 24.2R2.
References
| Link | Resource |
|---|---|
| https://supportportal.juniper.net/JSA96469 | Vendor Advisory |
Configurations
Configuration 1 (hide)
| AND |
|
History
No history.
Information
Published : 2025-04-09 20:15
Updated : 2026-01-23 19:35
NVD link : CVE-2025-30658
Mitre link : CVE-2025-30658
CVE.ORG link : CVE-2025-30658
JSON object : View
Products Affected
juniper
- srx380
- srx4120
- srx5400
- srx2300
- srx5800
- srx4600
- junos
- srx320
- srx340
- srx4200
- srx5600
- srx1600
- srx4700
- srx4300
- srx345
- srx1500
- srx4100
- srx300
CWE
CWE-401
Missing Release of Memory after Effective Lifetime