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Junos CVE-2024-39551

HIGH
Uncontrolled Resource Consumption (CWE-400)
2024-07-11 sirt@juniper.net
Juniper Denial Of Service Junos
8.7
CVSS 4.0 · Vendor: juniper
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Severity by source

Vendor (juniper) PRIMARY
8.7 HIGH
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

Primary rating from Vendor (juniper) · only source for this CVE.

CVSS VectorVendor: juniper

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
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

1
CVE Published
Jul 11, 2024 - 17:15 cve.org
HIGH 8.7

DescriptionCVE.org

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.

AnalysisAI

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. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400), which allows attackers to cause denial of service by exhausting system resources. 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 jsf4 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. Affected products include: Juniper Junos. Version information: before 20.4.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement rate limiting, set resource quotas, validate input sizes, use timeouts.

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CVE-2024-39551 vulnerability details – vuln.today
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