CVE-2024-21606

Summary

A Double Free vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on SRX Series allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS).

In a remote access VPN scenario, if a "tcp-encap-profile" is configured and a sequence of specific packets is received, a flowd crash and restart will be observed.

This issue affects Juniper Networks Junos OS on SRX Series:

  • All versions earlier than 20.4R3-S8;
  • 21.2 versions earlier than 21.2R3-S6;
  • 21.3 versions earlier than 21.3R3-S5;
  • 21.4 versions earlier than 21.4R3-S5;
  • 22.1 versions earlier than 22.1R3-S3;
  • 22.2 versions earlier than 22.2R3-S3;
  • 22.3 versions earlier than 22.3R3-S1;
  • 22.4 versions earlier than 22.4R2-S2, 22.4R3.

Affected Software

VendorProductVersion RangeStatus
Juniper NetworksJunos OS0 < 20.4R3-S8affected
Juniper NetworksJunos OS21.2 < 21.2R3-S6affected
Juniper NetworksJunos OS21.3 < 21.3R3-S5affected
Juniper NetworksJunos OS21.4 < 21.4R3-S5affected
Juniper NetworksJunos OS22.1 < 22.1R3-S3affected
Juniper NetworksJunos OS22.2 < 22.2R3-S3affected
Juniper NetworksJunos OS22.3 < 22.3R3-S1affected
Juniper NetworksJunos OS22.4 < 22.4R2-S2, 22.4R3affected

Weaknesses

  • CWE-415: CWE-415 Double Free
  • 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