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

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.

Remediation

Solution:

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

Workaround:

  • There are no viable workarounds for this issue, but it should be considered to disable the SIP ALG if it's not strictly needed.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.52%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
https://kb.juniper.net/JSA69513 mitigation vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-22198?
CVE-2022-22198 has been scored as a high severity vulnerability.
How to fix CVE-2022-22198?
To fix CVE-2022-22198: The following software releases have been updated to resolve this specific issue: 20.4R3, 21.1R2-S1, 21.1R3, 21.2R2, 21.3R1, and all subsequent releases.
Is CVE-2022-22198 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-22198 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-22198?
CVE-2022-22198 affects Juniper Networks Junos OS.
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