A use-after-free vulnerability can occur when flushing and resizing layout because the “PressShell” object has been freed while still in use. This results in a potentially exploitable crash during these operations. This vulnerability affects Firefox < 57, Firefox ESR < 52.5, and Thunderbird < 52.5.

redhatcve 1

veracode 1

cve 1

debiancve 1

ubuntucve 1

kaspersky 2

prion 1

nessus 36

altlinux 2

osv 5

openvas 31

oraclelinux 2