description: When processing a MAR update file, after the signature has been validated, an invalid name length could result in a heap overflow, leading to memory corruption and potentially arbitrary code execution. Within Firefox as released by Mozilla, this issue is only exploitable with the Mozilla-controlled signing key. This vulnerability affects Firefox < 80.
problem types: Heap overflow when processing an update file
affected:
{
product: Firefox
vendor: Mozilla
versions:
lessThan: 80, status: affected, version: unspecified, versionType: custom
}