CVE-2022-22175

Junos OS: MX Series and SRX Series: The flowd daemon will crash if the SIP ALG is enabled and specific SIP messages are processed

Description

An Improper Locking vulnerability in the SIP ALG of Juniper Networks Junos OS on MX Series and SRX Series allows an unauthenticated networked attacker to cause a flowprocessing daemon (flowd) crash and thereby a Denial of Service (DoS). Continued receipt of these specific packets will cause a sustained Denial of Service condition. This issue can occur in a scenario where the SIP ALG is enabled and specific SIP messages are being processed simultaneously. This issue affects: Juniper Networks Junos OS on MX Series and SRX Series 20.4 versions prior to 20.4R3-S1; 21.1 versions prior to 21.1R2-S2, 21.1R3; 21.2 versions prior to 21.2R1-S2, 21.2R2; 21.3 versions prior to 21.3R1-S1, 21.3R2. This issue does not affect Juniper Networks Junos OS versions prior to 20.4R1.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: 20.4R3-S1, 21.1R2-S2, 21.1R3, 21.2R1-S2, 21.2R2, 21.3R1-S1, 21.3R2, 21.4R1, and all subsequent releases.

Workaround:

  • There are no viable workarounds for this issue.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.30%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
https://kb.juniper.net/JSA11281 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-22175?
CVE-2022-22175 has been scored as a high severity vulnerability.
How to fix CVE-2022-22175?
To fix CVE-2022-22175: The following software releases have been updated to resolve this specific issue: 20.4R3-S1, 21.1R2-S2, 21.1R3, 21.2R1-S2, 21.2R2, 21.3R1-S1, 21.3R2, 21.4R1, and all subsequent releases.
Is CVE-2022-22175 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-22175 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-22175?
CVE-2022-22175 affects Juniper Networks Junos OS.
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