MGASA-2019-0212 Updated thunderbird packages fix security vulnerability

Sandbox escape via installation of malicious language pack. CVE-2019-9811 Script injection within domain through inner window reuse. CVE-2019-11711 Cross-origin POST requests can be made with NPAPI plugins by following 308 redirects. CVE-2019-11712 Use-after-free with HTTP/2 cached stream...