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Medium · 5.3 CVE-2025-30657 EUVD-2025-10512GHSA-75m6-45mm-wc4h

Junos OS: Processing of a specific BGP update causes the SRRD process to crash

Published Apr 9, 2025 · Updated Apr 9, 2025 · Assigned by juniper

Description

An Improper Encoding or Escaping of Output vulnerability in the Sampling Route Record Daemon (SRRD) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).

When a device configured for flow-monitoring receives a specific BGP update message, it is correctly processed internally by the routing protocol daemon (rpd), but when it's sent to SRRD it's encoded incorrectly which leads to a crash and momentary interruption of jflow processing until it automatically restarts. This issue does not affect traffic forwarding itself.
This issue affects Junos OS: 

* 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,
* 23.2 versions before 23.2R1-S2, 23.2R2.

This issue does not affected Junos OS Evolved.

Affected products

VendorProductAffectedFixed
Juniper Networks Junos OS < 21.2R3-S9, 21.4 – < 21.4R3-S10, 22.2 – < 22.2R3-S6, 22.4 – < 22.4R3, 23.2 – < 23.2R1-S2, 23.2R2 21.2R3-S9

Advisories 1

References