description: If the Compact() method was called on an nsTArray, the array could have been reallocated without updating other pointers, leading to a potential use-after-free and exploitable crash. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
problem types: Potential use-after-free in uses of nsTArray
affected:
{
product: Firefox
vendor: Mozilla
versions:
status: affected, version: < 83
}
{
product: Firefox ESR
vendor: Mozilla
versions:
status: affected, version: < 78.5
}
{
product: Thunderbird
vendor: Mozilla
versions:
status: affected, version: < 78.5
}
