CVE-2022-22198 Junos OS: MX MS-MPC or MS-MIC, or SRX SPC crashes if it receives a SIP message with a specific contact header format

High 7.5 Published 14 Apr 2022 Updated 17 Sep 2024

An unauthenticated attacker can cause a denial of service on Juniper MX and SRX devices by sending crafted SIP messages when the SIP ALG is enabled.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-22198?

CVE-2022-22198 is a high-severity vulnerability in Juniper Junos, published on 14 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An Access of Uninitialized Pointer vulnerability in the SIP ALG of Juniper Networks Junos OS allows an unauthenticated network-based attacker to cause a Denial of Service (DoS). Continued receipt of these specific packets will cause a sustained Denial of Service condition. On all MX and SRX platforms, if the SIP ALG is enabled, an MS-MPC or MS-MIC, or SPC will crash if it receives a SIP message with a specific contact header format. This issue affects Juniper Networks Junos OS on MX Series and SRX Series: 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2-S1, 21.1R3; 21.2 versions prior to 21.2R2. This issue does not affect versions prior to 20.4R1.

Weakness: CWE-824

Which versions are affected by CVE-2022-22198?

It affects 1 product.

Products include Juniper Junos.

How do I fix CVE-2022-22198?

No fix has been published for CVE-2022-22198 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-22198 being exploited?

There is no known exploitation of CVE-2022-22198 in the wild and no public exploit code.

All Juniper Junos vulnerabilities

Sources

Also known as GHSA-xwh6-w3pq-2jj3.