description: The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash. *Note: This issue only affected x86-32 platforms. Other platforms are unaffected.*. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
problem types: Incorrect size computation in WebAssembly JIT could lead to null-reads
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
}
