Description
A Missing Release of Memory after Effective Lifetime vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on MX Series allows an unauthenticated adjacent attacker to cause a Denial-of-Service (DoS). In a subscriber management scenario, login/logout activity triggers a memory leak, and the leaked memory gradually increments and eventually results in a crash. user@host> show chassis fpc Temp CPU Utilization (%) CPU Utilization (%) Memory Utilization (%) Slot State (C) Total Interrupt 1min 5min 15min DRAM (MB) Heap Buffer 2 Online 36 10 0 9 8 9 32768 26 0 This issue affects Junos OS on MX Series: * All versions before 21.2R3-S9 * from 21.4 before 21.4R3-S10 * from 22.2 before 22.2R3-S6 * from 22.4 before 22.4R3-S5 * from 23.2 before 23.2R2-S3 * from 23.4 before 23.4R2-S3 * from 24.2 before 24.2R2.
Problem types
CWE-401 Missing Release of Memory after Effective Lifetime
Product status
Any version before 21.2R3-S9
21.4 (semver) before 21.4R3-S10
22.2 (semver) before 22.2R3-S6
22.4 (semver) before 22.4R3-S5
23.2 (semver) before 23.2R2-S3
23.4 (semver) before 23.4R2-S3
24.2 (semver) before 24.2R2
Timeline
| 2025-04-09: | Initial Publication |
References
supportportal.juniper.net/JSA96457