The vulnerability of the functions DH_check(), DH_check_ex(), or EVP_PKEY_param_check() in the OpenSSL library allows a attacker to cause a service failure.

The vulnerability of the DHcheck, DHcheckex, or EVPPKEYparamcheck functions in the OpenSSL library is related to the use of a regular expression with inefficient computational complexity. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...