Under certain heavy traffic conditions srxpfe process can crash and result in a denial of service condition for the SRX1500 device. Repeated crashes of the srxpfe can result in an extended denial of service condition. The SRX device may fail to forward traffic when this condition occurs.

Affected releases are Juniper Networks Junos OS:

15.1X49 versions prior to 15.1X49-D170 on SRX1500;

17.3 versions prior to 17.3R3-S7 on SRX1500;

17.4 versions prior to 17.4R2-S8, 17.4R3 on SRX1500;

18.1 versions prior to 18.1R3-S8 on SRX1500;

18.2 versions prior to 18.2R3 on SRX1500;

18.3 versions prior to 18.3R2 on SRX1500;

18.4 versions prior to 18.4R2 on SRX1500.

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-2019-0050 .

The following software releases have been updated to resolve this specific issue: 15.1X49-D170, 17.3R3-S7(pending), 17.4R2-S8, 17.4R3, 18.1R3-S8, 18.2R3, 18.3R2, 18.4R2, 19.1R1, and all subsequent releases.

This issue is being tracked as PR  1277363  and  1428657  which are visible on the Customer Support website.

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

Software Releases, patches and updates are available at https://www.juniper.net/support/downloads/ .

There are no viable workarounds for this issue.

• 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
• CVE-2019-0050 at cve.mitre.org