Related Vulnerabilities: CVE-2018-5161  

A security issue has been found in Thunderbird before 52.8, where crafted message headers can cause a Thunderbird process to hang on receiving the message.

Severity Medium

Remote Yes

Type Denial of service

Description

A security issue has been found in Thunderbird before 52.8, where crafted message headers can cause a Thunderbird process to hang on receiving the message.

AVG-707 thunderbird 52.7.0-2 52.8.0-1 Critical Fixed

21 May 2018 ASA-201805-21 AVG-707 thunderbird Critical multiple issues

https://www.mozilla.org/en-US/security/advisories/mfsa2018-13/#CVE-2018-5161
https://bugzilla.mozilla.org/show_bug.cgi?id=1411720