David Lehn

The issue concerns the RSA PKCS#1 v1.5 signature verification code in node-forge, which is lenient in checking the digest algorithm structure. This leniency can allow a crafted structure to steal padding bytes and use the unchecked portion of the PKCS#1 encoded message to forge a signature when a low public exponent is being used.

The issue concerns the RSA PKCS#1 v1.5 signature verification code in node-forge, which does not check for tailing garbage bytes after decoding a `DigestInfo` ASN.1 structure. This can allow padding bytes to be removed and garbage data added to forge a signature when a low public exponent is being used.