If your answers to both questions are NO, then what are you worried/frustrated about? He made mistakes, and he tried to cover his behind. As long as he's not blaming on you, you don't need to be concerned. But rather use that as an opportunity to help him. If you can help him reduce such mistakes, and/or fix those problems, you will gain his trust and support.
Now, if he's trying to shift the blame on you. Explaining to him won't help. You just need to make extra effort to bring more people into the process of problem solving, so everyone knows who fixed the problem and likely who caused the issue. Ccing emails is a very simply but powerful tool.
很多时候心态影响了理性判断与实际操作，你的头专业上不如你，不要当作天大的事或者一个看不上他的理由。保护自己但是不要老是对直接上司很抵触，不然的话烦恼的是自己，除非你准备换地方。
