CVE-2020-27338 : Security Advisory and Response

An issue was discovered in Treck IPv6 before 6.0.1.68 that allows an unauthenticated remote attacker to cause an Out of Bounds Read and possibly a Denial of Service via adjacent network access.

Understanding CVE-2020-27338

This CVE involves an Improper Input Validation vulnerability in the DHCPv6 client component of Treck IPv6.

What is CVE-2020-27338?

The vulnerability in Treck IPv6 before version 6.0.1.68 allows an unauthenticated remote attacker to trigger an Out of Bounds Read and potentially conduct a Denial of Service attack through adjacent network access.

The Impact of CVE-2020-27338

The impact of this vulnerability is rated as MEDIUM severity with a CVSS base score of 5.9. It has a HIGH availability impact and LOW confidentiality impact.

Technical Details of CVE-2020-27338

This section provides more technical insights into the CVE.

Vulnerability Description

The issue stems from improper input validation in the DHCPv6 client component, leading to the potential Out of Bounds Read and Denial of Service.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by an unauthenticated remote attacker through adjacent network access.

Mitigation and Prevention

Protecting systems from CVE-2020-27338 is crucial to maintaining security.

Immediate Steps to Take

Apply vendor patches promptly
Implement network segmentation to limit exposure
Monitor network traffic for any suspicious activity

Long-Term Security Practices

Regularly update and patch software components
Conduct security assessments and audits periodically

Patching and Updates

Ensure that the Treck IPv6 component is updated to version 6.0.1.68 or later to mitigate the vulnerability.