A Missing Release of Memory after Effective Lifetime vulnerability in the Application Quality of Experience (appqoe) subsystem of the PFE of Juniper Networks Junos OS on SRX Series allows an unauthenticated network based attacker to cause a Denial of Service (DoS).
 

Upon receiving specific traffic a memory leak will occur. Sustained processing of such specific traffic will eventually lead to an out of memory condition that prevents all services from continuing to function, and requires a manual restart to recover.
 

A device is only vulnerable when advance(d) policy based routing (APBR) is configured and AppQoE (sla rule) is not configured for these APBR rules.
 

This issue affects Juniper Networks Junos OS on SRX Series:

• 20.3 versions prior to 20.3R3-S2;
• 20.4 versions prior to 20.4R3-S2;
• 21.1 versions prior to 21.1R3;
• 21.2 versions prior to 21.2R2-S1, 21.2R3;
• 21.3 versions prior to 21.3R1-S2, 21.3R2.

This issue does not affect Juniper Networks Junos OS versions prior to 20.3R1.

Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

This issue was seen during production usage.

This issue has been assigned CVE-2022-22205.

The following software releases have been updated to resolve this specific issue: 20.3R3-S2, 20.4R3-S2, 21.1R3, 21.2R2-S1, 21.2R3, 21.3R1-S2, 21.3R2, 21.4R1, and all subsequent releases.
 

Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of Engineering (EOE) or End of Life (EOL).
 

This issue is being tracked as 1628090.

2022-07-13: Initial publication

• KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin Publication Process [juniper.net]
• KB16765: In which releases are vulnerabilities fixed? [juniper.net]
• KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories [juniper.net]
• Report a Security Vulnerability - How to Contact the Juniper Networks Security Incident Response Team