CVE-2018-5510 : What You Need to Know
Learn about CVE-2018-5510, a vulnerability in F5 BIG-IP 11.5.4 HF4-11.5.5 that could lead to TMM restarts on IPv6 virtual servers, potentially causing a Denial of Service (DoS) condition. Find mitigation steps and patching recommendations here.
In the F5 BIG-IP version 11.5.4 HF4-11.5.5, a vulnerability exists where the Traffic Management Microkernel (TMM) may restart when processing a specific sequence of packets on IPv6 virtual servers, potentially leading to a Denial of Service (DoS) condition.
Understanding CVE-2018-5510
This CVE entry details a specific vulnerability in the F5 BIG-IP software version 11.5.4 HF4-11.5.5 that could result in service disruption due to TMM restarts.
What is CVE-2018-5510?
CVE-2018-5510 is a vulnerability in F5 BIG-IP software versions 11.5.4 HF4-11.5.5 that could allow an attacker to trigger TMM restarts by sending a particular packet sequence to IPv6 virtual servers.
The Impact of CVE-2018-5510
The vulnerability could lead to a Denial of Service (DoS) condition, causing service interruptions and potential downtime for affected systems.
Technical Details of CVE-2018-5510
This section provides more in-depth technical information about the CVE.
Vulnerability Description
The vulnerability in F5 BIG-IP 11.5.4 HF4-11.5.5 could result in TMM restarts when processing specific packet sequences on IPv6 virtual servers.
Affected Systems and Versions
- Product: BIG-IP (Analytics, LTM, AAM, AFM, APM, ASM, DNS, Edge, Gateway, GTM Link Controller, PEM, WebAccelerator, WebSafe)
- Vendor: F5 Networks, Inc.
- Versions: 11.5.4 HF4-11.5.5
Exploitation Mechanism
Attackers can exploit this vulnerability by sending a particular packet sequence to IPv6 virtual servers, causing TMM restarts and potential service disruptions.
Mitigation and Prevention
To address CVE-2018-5510, follow these mitigation strategies:
Immediate Steps to Take
- Apply vendor-supplied patches or updates promptly.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update and patch software to prevent known vulnerabilities.
- Implement network segmentation to limit the impact of potential attacks.
Patching and Updates
- Check for and apply patches provided by F5 Networks, Inc. to address the vulnerability.