CVE-2019-12259 : Exploit Details and Defense Strategies
Learn about CVE-2019-12259, an array index error in Wind River VxWorks IGMPv3 client component, leading to a denial of service (DoS) due to a NULL dereference during IGMP parsing. Find mitigation steps and updates.
An array index error in the IGMPv3 client component of Wind River VxWorks versions 6.6, 6.7, 6.8, 6.9, and vx7 can lead to a denial of service (DoS) due to a NULL dereference during IGMP parsing.
Understanding CVE-2019-12259
This CVE identifies a vulnerability in Wind River VxWorks versions that can result in a DoS attack.
What is CVE-2019-12259?
The CVE-2019-12259 vulnerability is an array index error in the IGMPv3 client component of Wind River VxWorks versions 6.6, 6.7, 6.8, 6.9, and vx7. It is related to IPNET security and can lead to a DoS due to a NULL dereference during IGMP parsing.
The Impact of CVE-2019-12259
The vulnerability can be exploited by attackers to cause a denial of service (DoS) on affected systems, potentially disrupting network operations and services.
Technical Details of CVE-2019-12259
This section provides more technical insights into the CVE-2019-12259 vulnerability.
Vulnerability Description
The vulnerability involves an array index error in the IGMPv3 client component of Wind River VxWorks versions, leading to a NULL dereference during IGMP parsing.
Affected Systems and Versions
- Wind River VxWorks versions 6.6, 6.7, 6.8, 6.9, and vx7
Exploitation Mechanism
Attackers can exploit this vulnerability by sending specially crafted IGMP packets to the affected system, triggering the NULL dereference and causing a DoS condition.
Mitigation and Prevention
To address CVE-2019-12259, follow these mitigation strategies:
Immediate Steps to Take
- Apply patches or updates provided by Wind River for the affected VxWorks versions.
- Implement network segmentation to limit the impact of potential attacks.
- Monitor network traffic for any suspicious IGMP packets.
Long-Term Security Practices
- Regularly update and patch all software and firmware to address known vulnerabilities.
- Conduct security assessments and penetration testing to identify and remediate weaknesses.
- Stay informed about security advisories and best practices to enhance overall cybersecurity posture.
Patching and Updates
- Wind River has released patches for the affected VxWorks versions. Ensure timely application of these patches to mitigate the vulnerability.