CVE-2018-0048 : Security Advisory and Response

An unauthenticated attacker can exploit a vulnerability in the Routing Protocols Daemon (RPD) with Juniper Extension Toolkit (JET) support, leading to memory exhaustion denial of service in Junos OS.

Understanding CVE-2018-0048

This CVE involves a severe memory exhaustion vulnerability in Junos OS, impacting system performance and availability.

What is CVE-2018-0048?

An unauthenticated attacker connected to the network can exploit a vulnerability in RPD with JET support
This exploit can cause significant depletion of device memory, affecting system performance

The Impact of CVE-2018-0048

Attack Complexity: Low
Attack Vector: Network
Availability Impact: High
CVSS Base Score: 7.5 (High)
CWE-400: Uncontrolled Resource Consumption

Technical Details of CVE-2018-0048

This section provides detailed technical information about the vulnerability.

Vulnerability Description

Vulnerability in RPD with JET support causing memory exhaustion

Affected Systems and Versions

Junos OS 17.2 versions before 17.2R1-S7, 17.2R2-S6, 17.2R3
Junos OS 17.2X75 versions before 17.2X75-D102, 17.2X75-D110
Junos OS 17.3 versions before 17.3R2-S4, 17.3R3
Junos OS 17.4 versions before 17.4R1-S5, 17.4R2
Junos OS 18.1 versions before 18.1R2-S3, 18.1R3

Exploitation Mechanism

Unauthenticated network attacker exploiting RPD with JET support

Mitigation and Prevention

Learn how to mitigate and prevent the CVE-2018-0048 vulnerability.

Immediate Steps to Take

Update to the fixed software releases: 17.2R1-S7, 17.2R2-S6, 17.2R3, and others

Long-Term Security Practices

Regularly update Junos OS to the latest versions
Implement network segmentation and access controls

Patching and Updates

Apply the provided software releases to address the vulnerability