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THREATINT
PUBLISHED

CVE-2024-39551

Junos OS: SRX Series and MX Series with SPC3 and MS-MPC/MIC: Receipt of specific packets in H.323 ALG causes traffic drop



Assignerjuniper
Reserved2024-06-25
Published2024-07-11
Updated2024-08-02

Description

An Uncontrolled Resource Consumption vulnerability in the H.323 ALG (Application Layer Gateway) of  Juniper Networks Junos OS on SRX Series and MX Series with SPC3 and MS-MPC/MIC, allows an unauthenticated network-based attacker to send specific packets causing traffic loss leading to Denial of Service (DoS).  Continued receipt and processing of these specific packets will sustain the Denial of Service condition. The memory usage can be monitored using the below command.   user@host> show usp memory segment sha data objcache jsf  This issue affects SRX Series and MX Series with SPC3 and MS-MPC/MIC:  *  20.4 before 20.4R3-S10,  *  21.2 before 21.2R3-S6,  *  21.3 before 21.3R3-S5,  *  21.4 before 21.4R3-S6,  *  22.1 before 22.1R3-S4,  *  22.2 before 22.2R3-S2,  *  22.3 before 22.3R3-S1,  *  22.4 before 22.4R3,  *  23.2 before 23.2R2.



HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L

Problem types

CWE-400: Uncontrolled Resource Consumption

Product status

Default status
unaffected

20.4 before 20.4R3-S10
affected

21.2 before 21.2R3-S6
affected

21.3 before 21.3R3-S5
affected

21.4 before 21.4R3-S6
affected

22.1 before 22.1R3-S4
affected

22.2 before 22.2R3-S2
affected

22.3 before 22.3R3-S1
affected

22.4 before 22.4R3
affected

23.2 before 23.2R2
affected

References

https://supportportal.juniper.net/JSA83013 vendor-advisory

cve.org CVE-2024-39551

nvd.nist.gov CVE-2024-39551

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