CVE-2019-14198 : Security Advisory and Response

Das U-Boot up to version 2019.07 is affected by a vulnerability due to an unrestricted memcpy function in nfs_read_reply, leading to a lack of length verification during the store_block operation in the NFSv3 scenario.

Understanding CVE-2019-14198

This CVE identifies a security issue in Das U-Boot affecting versions up to 2019.07.

What is CVE-2019-14198?

An unbounded memcpy operation with a failed length check in nfs_read_reply during the store_block operation in the NFSv3 scenario.

The Impact of CVE-2019-14198

The vulnerability could potentially allow an attacker to execute remote code execution (RCE) attacks on systems running the affected Das U-Boot versions.

Technical Details of CVE-2019-14198

Das U-Boot vulnerability details.

Vulnerability Description

Unrestricted memcpy function with lacking length verification in nfs_read_reply

Affected Systems and Versions

Das U-Boot up to version 2019.07

Exploitation Mechanism

Execution of store_block operation in the NFSv3 scenario

Mitigation and Prevention

Steps to address and prevent CVE-2019-14198.

Immediate Steps to Take

Update Das U-Boot to a patched version if available
Monitor network traffic for any suspicious activity
Implement network segmentation to limit the impact of potential attacks

Long-Term Security Practices

Regularly update and patch software and firmware
Conduct security assessments and penetration testing to identify vulnerabilities
Educate users and administrators on best security practices

Patching and Updates

Check for patches and updates from Das U-Boot's official sources and apply them promptly