CVE-2019-12263 : Security Advisory and Response

A critical security flaw has been discovered in Wind River VxWorks 6.9.4 and vx7, specifically in the TCP component, involving a Buffer Overflow. Additionally, a security vulnerability related to IPNET has been identified, specifically involving TCP Urgent Pointer state confusion caused by a race condition.

Understanding CVE-2019-12263

This CVE involves critical vulnerabilities in Wind River VxWorks 6.9.4 and vx7 related to TCP component and IPNET.

What is CVE-2019-12263?

CVE-2019-12263 is a Buffer Overflow vulnerability in the TCP component of Wind River VxWorks 6.9.4 and vx7. It also includes a security flaw in IPNET related to TCP Urgent Pointer state confusion due to a race condition.

The Impact of CVE-2019-12263

Attackers could exploit these vulnerabilities to execute arbitrary code or cause a denial of service on affected systems.
The TCP Urgent Pointer state confusion could lead to unauthorized access or system crashes.

Technical Details of CVE-2019-12263

This section provides detailed technical information about the vulnerability.

Vulnerability Description

Wind River VxWorks 6.9.4 and vx7 are susceptible to a Buffer Overflow in the TCP component and a security flaw in IPNET related to TCP Urgent Pointer state confusion.

Affected Systems and Versions

Wind River VxWorks 6.9.4 and vx7

Exploitation Mechanism

Attackers can exploit the Buffer Overflow and TCP Urgent Pointer state confusion vulnerabilities remotely.

Mitigation and Prevention

Protect your systems from CVE-2019-12263 with the following steps:

Immediate Steps to Take

Apply vendor-supplied patches and updates promptly.
Monitor vendor channels for security advisories and follow best practices for secure configurations.
Implement network segmentation and access controls to limit exposure.

Long-Term Security Practices

Regularly update and patch all software and firmware.
Conduct security assessments and penetration testing to identify and address vulnerabilities.
Educate users and IT staff on security best practices and awareness.

Patching and Updates

Wind River has released patches to address the vulnerabilities in VxWorks 6.9.4 and vx7. Ensure timely application of these patches to secure your systems.