[openssl-users] DTLS is not sending alert in case of BAD CCS

Raja ashok raja.ashok at huawei.com
Tue Mar 21 15:24:57 UTC 2017

Hi All,

Looks like there is a typo mistake in dtls1_read_bytes, because of this alert is not send for bad CCS.

In dtls1_read_bytes, incase of bad change cipher spec we are setting alert code (SSL_AD_ILLEGAL_PARAMETER) to variable “i” and doing “goto err”. I feel we are trying to send alert in this case, so we need to set the alert in “al” and do “goto f_err”.

In case of TLS we are sending alert.

Note : I am referring 1.0.2.k version of OpenSSL



Raja Ashok V K
Huawei Technologies
Bangalore, India
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