Junos OS Evolved Vulnerability: Improper Check for Unusual or Exceptional Conditions May Cause Denial-of-Service Attack

CVE-2024-39519
6.5MEDIUM

Key Information

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

Badges

👾 Exploit Exists

Summary

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS). On all ACX 7000 Series platforms running Junos OS Evolved, and configured with IRBs, if a Customer Edge device (CE) device is dual homed to two Provider Edge devices (PE) a traffic loop will occur when the CE sends multicast packets. This issue can be triggered by IPv4 and IPv6 traffic. This issue affects Junos OS Evolved:  All versions from 22.2R1-EVO and later versions before 22.4R2-EVO, This issue does not affect Junos OS Evolved versions before 22.1R1-EVO.

Affected Version(s)

Junos OS Evolved = 22.1-EVO

Junos OS Evolved >= 22.1R1-EVO

Junos OS Evolved = 22.2-EVO

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published.

  • Vulnerability Reserved.

  • 👾

    Exploit exists.

Collectors

NVD DatabaseMitre Database
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