description: During RSA key generation, bignum implementations used a variation of the Binary Extended Euclidean Algorithm which entailed significantly input-dependent flow. This allowed an attacker able to perform electromagnetic-based side channel attacks to record traces leading to the recovery of the secret primes. *Note:* An unmodified Firefox browser does not generate RSA keys in normal operation and is not affected, but products built on top of it might. This vulnerability affects Firefox < 78.
problem types: RSA Key Generation vulnerable to side-channel attack
affected:
{
product: Firefox
vendor: Mozilla
versions:
lessThan: 78, status: affected, version: unspecified, versionType: custom
}