CVE-2025-52955
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
An Incorrect Calculation of Buffer Size vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a memory corruption that leads to a rpd crash.
When the logical interface using a routing instance flaps continuously, specific updates are sent to the jflow/sflow modules. This results in memory corruption, leading to an rpd crash and restart.
Continued receipt of these specific updates will cause a sustained Denial of Service condition.
This issue affects Junos OS:
- All versions before 21.2R3-S9,
- All versions of 21.4,
- All versions of 22.2,
- from 22.4 before 22.4R3-S7,
- from 23.2 before 23.2R2-S3,
- from 23.4 before 23.4R2-S4,
- from 24.2 before 24.2R2.
Junos OS Evolved:
- All versions of 21.2-EVO,
- All versions of 21.4-EVO,
- All versions of 22.2-EVO,
- from 22.4 before 22.4R3-S7-EVO,
- from 23.2 before 23.2R2-S3-EVO,
- from 23.4 before 23.4R2-S4-EVO,
- from 24.2 before 24.2R2-EVO.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Juniper Networks | Junos OS | 0 < 21.2R3-S9 | affected |
| Juniper Networks | Junos OS | 21.4 < 21.4* | affected |
| Juniper Networks | Junos OS | 22.2 < 22.2* | affected |
| Juniper Networks | Junos OS | 22.4 < 22.4R3-S7 | affected |
| Juniper Networks | Junos OS | 23.2 < 23.2R2-S3 | affected |
| Juniper Networks | Junos OS | 23.4 < 23.4R2-S4 | affected |
| Juniper Networks | Junos OS | 24.2 < 24.2R2 | affected |
| Juniper Networks | Junos OS Evolved | 0 < 21.2*-EVO | affected |
| Juniper Networks | Junos OS Evolved | 21.4 < 21.4*-EVO | affected |
| Juniper Networks | Junos OS Evolved | 22.2 < 22.2*-EVO | affected |
| Juniper Networks | Junos OS Evolved | 22.4 < 22.4R3-S7-EVO | affected |
| Juniper Networks | Junos OS Evolved | 23.2 < 23.2R2-S3-EVO | affected |
| Juniper Networks | Junos OS Evolved | 23.4 < 23.4R2-S4-EVO | affected |
| Juniper Networks | Junos OS Evolved | 24.2 < 24.2R2-EVO | affected |
Weaknesses
- CWE-131: CWE-131 Incorrect Calculation of Buffer Size
Workarounds
Limit CLI access to trusted users shall avoid this situation
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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