description: When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
problem types: Use-after-free in Responsive Design Mode
affected:
{
product: Firefox ESR
vendor: Mozilla
versions:
lessThan: 78.10, status: affected, version: unspecified, versionType: custom
}
{
product: Thunderbird
vendor: Mozilla
versions:
lessThan: 78.10, status: affected, version: unspecified, versionType: custom
}
{
product: Firefox
vendor: Mozilla
versions:
lessThan: 88, status: affected, version: unspecified, versionType: custom
}
