Defamation of religion
The Organization of the Islamic Conference, acting through its specific members, regularly brings resolutions before the U.N. Human Rights Council condemning "defamation of religion." The term itself sounds fairly innocuous, and in fact at first blush, even appropriate; if we let those anti-religion types run around and bash religion, the reasoning goes, it will lead to all kinds of things like icky Nazis killing off Jews. So the UN tends (or tended) to support the resolutions. Recently, however, this support has been waning, perhaps because the Human Rights Council has finally taken the bother to notice that a person can still be executed for "defamation of religion" in the member nations of the OIC, including Pakistan.
The UN officially recognized the human right to blaspheme in General Comment No. 34 in late 2011.