A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).

On SRX Series If Unified Threat Management (UTM) Enhanced Content Filtering (CF) is enabled and specific transit traffic is processed the PFE will crash.

This issue affects Juniper Networks Junos OS:

• 21.4 versions prior to 21.4R1-S2, 21.4R2 on SRX Series;
• 22.1 versions prior to 22.1R1-S1, 22.1R2 on SRX Series.

This issue does not affect Juniper Networks Junos OS versions prior to 21.4R1.

For a device to be affected the following configuration has to be present:

This issue was found during internal product security testing or research.

This issue has been assigned CVE-2022-22232.

The following software releases have been updated to resolve this specific issue: Junos OS: 21.4R1-S2, 21.4R2, 22.1R1-S1 22.1R2, 22.2R1, and all subsequent releases.

This issue is being tracked as PR 1657887 which is 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).

IMPLEMENTATION:

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

• 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-2022-22232 at cve.mitre.org