CVE-2023-22416

Junos OS: MX Series and SRX Series: The flow processing daemon (flowd) will crash if SIP ALG is enabled and a malformed SIP packet is received

State: Published
Severity: 7.5 High
Published: Jan 12, 2023
Updated: Apr 8, 2025
Reserved: Dec 27, 2022

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Description

A Buffer Overflow vulnerability in SIP ALG of Juniper Networks Junos OS allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). On all MX Series and SRX Series platform with SIP ALG enabled, when a malformed SIP packet is received, the flow processing daemon (flowd) will crash and restart. This issue affects: Juniper Networks Junos OS on MX Series and SRX Series 20.4 versions prior to 20.4R3-S5; 21.1 versions prior to 21.1R3-S4; 21.2 versions prior to 21.2R3-S2; 21.3 versions prior to 21.3R3-S1; 21.4 versions prior to 21.4R3; 22.1 versions prior to 22.1R1-S2, 22.1R2; 22.2 versions prior to 22.2R1-S1, 22.2R2. This issue does not affect Juniper Networks Junos OS versions prior to 20.4R1 on SRX Series.

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-120 Buffer Overflow

Affected Products

Product	Versions
Junos OSJuniper Networks	before 20.4R1Not affected 20.4 to before 20.4R3-S5Affected 21.1 to before 21.1R3-S4Affected 21.2 to before 21.2R3-S2Affected 21.3 to before 21.3R3-S1Affected 21.4 to before 21.4R3Affected 22.1 to before 22.1R1-S2, 22.1R2Affected 22.2 to before 22.2R1-S1, 22.2R2Affected

References

https://kb.juniper.net/JSA70212

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