Junos OS and Junos OS Evolved: The rpd process will crash when a malformed incoming RESV message is processed

Summary

An Improper Check for Unusual or Exceptional Conditions vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). When an incoming RESV message corresponding to a protected LSP is malformed it causes an incorrect internal state resulting in an rpd core. This issue affects: Juniper Networks Junos OS All versions prior to 19.2R3-S6; 19.3 versions prior to 19.3R3-S6; 19.4 versions prior to 19.4R3-S8; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3-S1; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R1-S2, 21.2R3; 21.3 versions prior to 21.3R2. Juniper Networks Junos OS Evolved All versions prior to 20.2R3-S3-EVO; 20.3-EVO version 20.3R1-EVO and later versions; 20.4-EVO versions prior to 20.4R3-S1-EVO; 21.1-EVO version 21.1R1-EVO and later versions; 21.2-EVO version 21.2R1-EVO and later versions; 21.3-EVO versions prior to 21.3R2-EVO.

Timeline

1. Oct 18, 2022, 2:46 AM UTCCVE published
2. May 10, 2025, 2:35 AM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

3. May 10, 2025, 2:35 AM UTCRecord last updated

Affected versions

• Juniper Networks Junos OS

  fixed in 19.2R3-S6; From 19.3 · fixed in 19.3R3-S6; From 19.4 · fixed in 19.4R3-S8; From 20.1 · fixed in 20.1R3-S2; From 20.2 · fixed in 20.2R3-S3; From 20.3 · fixed in 20.3R3-S2; From 20.4 · fixed in 20.4R3-S1; From 21.1 · fixed in 21.1R3; From 21.3 · fixed in 21.3R2

• Juniper Networks Junos OS Evolved

  fixed in 20.2R3-S3-EVO; From 20.3R1-EVO; From 20.4-EVO · fixed in 20.4R3-S1-EVO; From 21.1R1-EVO; From 21.2R1-EVO; From 21.3-EVO · fixed in 21.3R2-EVO

References 1