CVE-2017-7802

Source
Severity Critical
Remote Yes
Type Arbitrary code execution
Description
A use-after-free vulnerability has been found in firefox < 55.0 and thunderbird < 52.3, when manipulating the DOM during the resize event of an image element. If these elements have been freed due to a lack of strong references, a potentially exploitable crash may occur when the freed elements are accessed.
Group Package Affected Fixed Severity Status Ticket
AVG-385 thunderbird 52.2.1-1 52.3.0-1 Critical Fixed
AVG-375 firefox 54.0.1-1 55.0-1 Critical Fixed
Date Advisory Group Package Severity Description
10 Aug 2017 ASA-201708-3 AVG-375 firefox Critical multiple issues
23 Aug 2017 ASA-201708-18 AVG-385 thunderbird Critical multiple issues
References
https://www.mozilla.org/en-US/security/advisories/mfsa2017-18/#CVE-2017-7802
https://bugzilla.mozilla.org/show_bug.cgi?id=1378147