description: When the Mozilla Updater opens a MAR format file which contains a very long item filename, an out-of-bounds write can be triggered, leading to a potentially exploitable crash. This requires running the Mozilla Updater manually on the local system with the malicious MAR file in order to occur. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.
problem types: Out-of-bounds write with malicious MAR file
affected:
{
product: Firefox
vendor: Mozilla
versions:
lessThan: 62, status: affected, version: unspecified, versionType: custom
}
{
product: Firefox ESR
vendor: Mozilla
versions:
lessThan: 60.2, status: affected, version: unspecified, versionType: custom
}
{
product: Thunderbird
vendor: Mozilla
versions:
lessThan: 60.2.1, status: affected, version: unspecified, versionType: custom
}
