Related Vulnerabilities: CVE-2017-5390  

The JSON viewer in the Developer Tools in Firefox < 51 and Thunderbird < 45.7 uses insecure methods to create a communication channel for copying and viewing JSON or HTTP headers data, allowing for potential privilege escalation.

Severity High

Remote Yes

Type Privilege escalation

Description

The JSON viewer in the Developer Tools in Firefox < 51 and Thunderbird < 45.7 uses insecure methods to create a communication channel for copying and viewing JSON or HTTP headers data, allowing for potential privilege escalation.

AVG-158 thunderbird 45.6.0-1 45.7.0-1 Critical Fixed

AVG-157 firefox 50.1.0-1 51.0.1-1 Critical Fixed

29 Jan 2017 ASA-201701-40 AVG-158 thunderbird Critical multiple issues

29 Jan 2017 ASA-201701-39 AVG-157 firefox Critical multiple issues

https://www.mozilla.org/en-US/security/advisories/mfsa2017-01/#CVE-2017-5390
https://bugzilla.mozilla.org/show_bug.cgi?id=1297361