Memory Leak and DoS Vulnerability Affects Juniper Networks' Junos OS on MX Series
CVE-2024-39539

5.3MEDIUM

Key Information:

Vendor

Juniper Networks
Status
Junos Os
Vendor
CVE Published:
11 July 2024

What is CVE-2024-39539?

A Missing Release of Memory after Effective Lifetime vulnerability in Juniper Networks Junos OS on MX Series allows an unauthenticated adjacent attacker to cause a Denial-of-Service (DoS).

In a subscriber management scenario continuous subscriber logins will trigger a memory leak and eventually lead to an FPC crash and restart.

This issue affects Junos OS on MX Series:

  • All version before 21.2R3-S6,
  • 21.4 versions before 21.4R3-S6,
  • 22.1 versions before 22.1R3-S5,
  • 22.2 versions before 22.2R3-S3, 
  • 22.3 versions before 22.3R3-S2,
  • 22.4 versions before 22.4R3,
  • 23.2 versions before 23.2R2.

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Affected Version(s)

Junos OS MX Series 0 < 21.2R3-S6

Junos OS MX Series 21.4 < 21.4R3-S6

Junos OS MX Series 22.1 < 22.1R3-S5

References

https://supportportal.juniper.net/JSA82999
vendor-advisory

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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