description: An attacker could have caused 4 bytes of HMAC output to be written past the end of a buffer stored on the stack. This could be used by an attacker to execute arbitrary code or more likely lead to a crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.
problem types: Stack buffer overflow in HKDF output
affected:
{
product: Firefox
vendor: Mozilla
versions:
status: affected, version: before 70
}
{
product: Thunderbird
vendor: Mozilla
versions:
status: affected, version: before 68.2
}
{
product: Firefox ESR
vendor: Mozilla
versions:
status: affected, version: before 68.2
}
