Remote Yes

Type Arbitrary code execution

Description

A user-after-free has been found in Firefox < 54.0 and Thunderbird < 52.2, when using an incorrect URL during the reloading of a docshell.

AVG-303 thunderbird 52.1.1-1 52.2.0-1 Critical Fixed

AVG-302 firefox 53.0.3-1 54.0-1 Critical Fixed

16 Jun 2017 ASA-201706-20 AVG-303 thunderbird Critical multiple issues

16 Jun 2017 ASA-201706-19 AVG-302 firefox Critical multiple issues

https://www.mozilla.org/en-US/security/advisories/mfsa2017-15/#CVE-2017-7749
https://bugzilla.mozilla.org/show_bug.cgi?id=1355039