CVE-2024-21602

Summary

A NULL Pointer Dereference vulnerability in Juniper Networks Junos OS Evolved on ACX7024, ACX7100-32C and ACX7100-48L allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).

If a specific IPv4 UDP packet is received and sent to the Routing Engine (RE) packetio crashes and restarts which causes a momentary traffic interruption. Continued receipt of such packets will lead to a sustained DoS.

This issue does not happen with IPv6 packets.

This issue affects Juniper Networks Junos OS Evolved on ACX7024, ACX7100-32C and ACX7100-48L:

  • 21.4-EVO versions earlier than 21.4R3-S6-EVO;
  • 22.1-EVO versions earlier than 22.1R3-S5-EVO;
  • 22.2-EVO versions earlier than 22.2R2-S1-EVO, 22.2R3-EVO;
  • 22.3-EVO versions earlier than 22.3R2-EVO.

This issue does not affect Juniper Networks Junos OS Evolved versions earlier than 21.4R1-EVO.

Affected Software

VendorProductVersion RangeStatus
Juniper NetworksJunos OS Evolved21.4-EVO < 21.4R3-S6-EVOaffected
Juniper NetworksJunos OS Evolved22.1-EVO < 22.1R3-S5-EVOaffected
Juniper NetworksJunos OS Evolved22.2-EVO < 22.2R2-S1-EVO, 22.2R3-EVOaffected
Juniper NetworksJunos OS Evolved22.3-EVO < 22.3R2-EVOaffected

Weaknesses

  • CWE-476: CWE-476 NULL Pointer Dereference
  • Denial of Service (DoS)

Workarounds

There are no known workarounds for this issue.

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References