CVE-2022-22231: SRX Series: If UTM Enhanced Content Filtering and AntiVirus are enabled, and specific traffic is processed the PFE will crash
First published: Tue Oct 18 2022(Updated: )
An Unchecked Return Value to NULL Pointer Dereference vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS 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) and AntiVirus (AV) are enabled together and the system processes specific valid transit traffic the Packet Forwarding Engine (PFE) will crash and restart. This issue affects Juniper Networks Junos OS 21.4 versions prior to 21.4R1-S2, 21.4R2 on SRX Series. This issue does not affect Juniper Networks Junos OS versions prior to 21.4R1.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper JUNOS | =21.4 | |
| Juniper JUNOS | =21.4-r1 | |
| Juniper JUNOS | =21.4-r1-s1 | |
| Juniper Srx1500 | ||
| Juniper Srx4100 | ||
| Juniper Srx4200 | ||
| Juniper Srx4600 | ||
| Juniper Srx5400 | ||
| Juniper Srx550 | ||
| Juniper Srx5600 | ||
| Juniper Srx5800 |
Remedy
The following software releases have been updated to resolve this specific issue: Junos OS: 21.4R1-S2, 21.4R2, 22.1R1, and all subsequent releases.
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Reference Links
Frequently Asked Questions
What is CVE-2022-22231?
CVE-2022-22231 is an Unchecked Return Value to NULL Pointer Dereference vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS.
How does CVE-2022-22231 impact Juniper Networks Junos OS?
CVE-2022-22231 allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS) on SRX Series if UTM Enhanced Content Filtering (CF) is enabled.
What is the severity of CVE-2022-22231?
CVE-2022-22231 has a severity score of 7.5 (high).
Which versions of Juniper Networks Junos OS are affected by CVE-2022-22231?
Juniper Networks Junos OS versions 21.4, 21.4-r1, and 21.4-r1-s1 are affected by CVE-2022-22231.
How can I mitigate the CVE-2022-22231 vulnerability?
To mitigate the CVE-2022-22231 vulnerability, apply the necessary security patches provided by Juniper Networks and disable the UTM Enhanced Content Filtering (CF) if it is not needed.
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- canonical/juniper srx1500
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- canonical/juniper srx5600
- canonical/juniper srx5800