[FREEBSD:96A21236-707B-11EB-96D8-D4C9EF517024] OpenSSL -- Multiple vulnerabilities

The OpenSSL project reports:

  Null pointer deref in X509_issuer_and_serial_hash()
    CVE-2021-23841(Moderate) The OpenSSL public API function
    X509_issuer_and_serial_hash() attempts to create a unique hash
    value based on the issuer and serial number data contained within
    an X509 certificate. However it fails to correctly handle any errors
    that may occur while parsing the issuer field (which might occur if
    the issuer field is maliciously constructed). This may subsequently
    result in a NULL pointer deref and a crash leading to a potential
    denial of service attack.
  Integer overflow in CipherUpdate CVE-2021-23840(Low)
    Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate
    may overflow the output length argument in some cases where the
    input length is close to the maximum permissable length for an
    integer on the platform. In such cases the return value from the
    function call will be 1 (indicating success), but the output length
    value will be negative. This could cause applications to behave
    incorrectly or crash.