CVE-2019-11890 : What You Need to Know

Sony Bravia Smart TV devices are vulnerable to a denial of service attack that can be triggered by remote attackers through a SYN flood attack over wired or Wi-Fi LAN connections.

Understanding CVE-2019-11890

This CVE entry describes a vulnerability in Sony Bravia Smart TV devices that allows attackers to cause a denial of service condition.

What is CVE-2019-11890?

Remote attackers can exploit a vulnerability in Sony Bravia Smart TV devices to trigger a denial of service condition using a SYN flood attack over wired or Wi-Fi LAN connections.

The Impact of CVE-2019-11890

The vulnerability can lead to a denial of service, causing the device to hang or reboot, disrupting normal functionality.

Technical Details of CVE-2019-11890

Sony Bravia Smart TV devices are susceptible to a specific type of attack that can disrupt their operation.

Vulnerability Description

The vulnerability allows remote attackers to launch a SYN flood attack, leading to a denial of service condition on the targeted Sony Bravia Smart TV.

Affected Systems and Versions

Product: Sony Bravia Smart TV
Vendor: Sony
Versions: All versions are affected

Exploitation Mechanism

Attackers can exploit the vulnerability by sending a high volume of SYN packets to the TV device, overwhelming its capacity and causing a denial of service.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.

Immediate Steps to Take

Disable remote access to the TV device if not required
Implement network-level protections to detect and block SYN flood attacks
Regularly monitor network traffic for any suspicious activity

Long-Term Security Practices

Keep the TV firmware up to date with the latest security patches
Implement strong network security measures to prevent unauthorized access

Patching and Updates

Sony may release patches or firmware updates to address this vulnerability, so users should regularly check for and apply these updates.