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

State: Published
Severity: 7.5 High
Published: Jan 19, 2022
Updated: Sep 16, 2024
Reserved: Dec 21, 2021

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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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	juniper

Weaknesses

CWE-667 Improper Locking

Affected Products

Product	Versions
Junos OSJuniper Networks	before 20.4R1Not affected 20.4 to before 20.4R3-S1Affected 21.1 to before 21.1R2-S2, 21.1R3Affected 21.2 to before 21.2R1-S2, 21.2R2Affected 21.3 to before 21.3R1-S1, 21.3R2Affected

References

https://kb.juniper.net/JSA11281

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