CVE-2019-12255 : What You Need to Know
Learn about CVE-2019-12255, a Buffer Overflow vulnerability in Wind River VxWorks TCP component related to the IPNET protocol. Find out the impact, affected systems, exploitation, and mitigation steps.
Wind River VxWorks has a Buffer Overflow vulnerability in the TCP component related to the IPNET protocol. This issue, marked as the first of four, involves an integer underflow due to the TCP Urgent Pointer being set to 0.
Understanding CVE-2019-12255
This CVE identifies a specific vulnerability in Wind River VxWorks that can lead to security risks.
What is CVE-2019-12255?
The CVE-2019-12255 vulnerability in Wind River VxWorks is a Buffer Overflow issue within the TCP component, specifically related to the IPNET protocol. The problem arises from an integer underflow triggered by setting the TCP Urgent Pointer to 0.
The Impact of CVE-2019-12255
The vulnerability can potentially allow attackers to exploit the TCP Urgent Pointer setting to trigger an integer underflow, leading to security breaches and potential system compromise.
Technical Details of CVE-2019-12255
This section delves into the technical aspects of the CVE.
Vulnerability Description
The vulnerability involves a Buffer Overflow in the TCP component of Wind River VxWorks, specifically related to the IPNET protocol. The issue stems from an integer underflow caused by setting the TCP Urgent Pointer to 0.
Affected Systems and Versions
- Product: Wind River VxWorks
- Vendor: Wind River
- Versions: All versions are affected
Exploitation Mechanism
The vulnerability can be exploited by manipulating the TCP Urgent Pointer setting to induce an integer underflow, potentially leading to unauthorized access and system compromise.
Mitigation and Prevention
Protecting systems from CVE-2019-12255 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor-supplied patches or updates promptly
- Monitor security advisories from Wind River and other relevant sources
- Implement network segmentation and access controls
Long-Term Security Practices
- Regularly update and patch all software and firmware
- Conduct security assessments and penetration testing
- Educate users and IT staff on security best practices
Patching and Updates
- Wind River may release patches or updates to address the vulnerability
- Stay informed about security notices and advisories from Wind River and other relevant sources