A Deadlock vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).

When a large amount of traffic is processed by ATP Cloud inspection, a deadlock can occur which will result in a PFE crash and restart. Whether the crash occurs, depends on system internal timing that is outside the attackers control.



This issue affects Junos OS on SRX Series:



  *  All versions before 21.3R3-S1,
  *  21.4 versions before 21.4R3,
  *  22.1 versions before 22.1R2,
  *  22.2 versions before 22.2R1-S2, 22.2R2.

Juniper Networks, Inc. CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:A/V:X/RE:M/U:X

Juniper Networks, Inc. AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Juniper Networks, Inc. CWE-833

Juniper Networks, Inc. https://supportportal.juniper.net/JSA88137 [No types assigned]