CVE-2017-7828

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 57 Firefox ESR versions prior to 52.5 Thunderbird versions prior to 52.5

Description A use-after-free issue occurs due to the PressShell object being freed while still in use, potentially leading to a crash during flushing and resizing layout operations. This can result in a denial of service.

Recommendations For Firefox versions prior to 57, update to version 57 or later. For Firefox ESR versions prior to 52.5, update to version 52.5 or later. For Thunderbird versions prior to 52.5, update to version 52.5 or later.