CVE-2017-5390 : What You Need to Know

A security vulnerability affecting Thunderbird, Firefox ESR, and Firefox versions prior to specified versions.

Understanding CVE-2017-5390

A security flaw in the Developer Tools' JSON viewer can lead to potential privilege escalation.

What is CVE-2017-5390?

The insecure communication methods in the Developer Tools JSON viewer can be exploited for privilege escalation.

The Impact of CVE-2017-5390

This vulnerability affects Thunderbird versions prior to 45.7, Firefox ESR versions prior to 45.7, and Firefox versions prior to 51.

Technical Details of CVE-2017-5390

Details of the vulnerability and affected systems.

Vulnerability Description

The JSON viewer in Developer Tools uses insecure methods, allowing potential privilege escalation.

Affected Systems and Versions

Thunderbird versions prior to 45.7
Firefox ESR versions prior to 45.7
Firefox versions prior to 51

Exploitation Mechanism

The vulnerability arises from insecure communication channels in the JSON viewer.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2017-5390.

Immediate Steps to Take

Update Thunderbird, Firefox ESR, and Firefox to versions 45.7 and 51 respectively.
Avoid opening untrusted JSON or HTTP headers.

Long-Term Security Practices

Regularly update software to the latest versions.
Educate users on safe browsing practices.

Patching and Updates

Apply security patches provided by Mozilla and other relevant vendors.