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

CVE-2024-39551

HIGH 8.7

At a glance

Source: NVD
EPSS: EPSS 0.48 % · percentile 41 (2026-10-31)
State: PUBLISHED
Published: 2024-07-11 16:29 UTC
Updated: 2024-08-02 04:26 UTC
Assigner: juniper
NVD status: Analyzed

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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.

Weaknesses (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

https://supportportal.juniper.net/JSA83013

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	juniper
CVSS 4.0	HIGH 8.7	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L	juniper
CVSS 4.0	HIGH 8.7	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	NVD · sirt@juniper.net (Secondary)
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · sirt@juniper.net (Secondary)

European references

ENISA EUVD · EUVD-2024-38077
GCVE · GCVE-0-2024-39551

CERT-FR advisories

CERTFR-2024-AVI-0575 — Multiples vulnérabilités dans les produits Juniper Networks · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:o:juniper:junos:20.4:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s8:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:20.4:r3-s9:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r3-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r3-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.2:r3-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:21.3:r3-s3:*:*:*:*:*:*
+53 more

Affected products

Product	Versions
Juniper Networks · Junos OS	affected 20.4 < 20.4R3-S10 ; affected 21.2 < 21.2R3-S6 ; affected 21.3 < 21.3R3-S5 ; affected 21.4 < 21.4R3-S6 ; affected 22.1 < 22.1R3-S4 ; affected 22.2 < 22.2R3-S2

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD

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