United Nations General Assembly Resolution 68/262
The resolution, which was supported by 100 United Nations member states, affirmed the United Nations commitment to recognize Crimea within Ukraine’s international borders and underscored the invalidity of the 2014 Crimean referendum. Armenia, Belarus, Bolivia, Cuba, North Korea, Nicaragua, Russia, Sudan, Syria, Venezuela and Zimbabwe all voted against the resolution. There were also 58 abstentions, and a further 24 states did not vote through being absent when the vote took place.
United Nations General Assembly Resolution 68/262 - Wikipedia, the free encyclopedia
General Assembly Adopts Resolution Calling upon States Not to Recognize Changes in Status of Crimea Region
General Assembly Adopts Resolution Calling upon States Not to Recognize Changes in Status of Crimea Region | Meetings Coverage and Press Releases
Even the UNSC voted against it and had it not been for Russia's permanent member status it would have passed, even China abstained which was tantamount to a yes vote:
15 March 2014 – Owing to the negative vote of one of its permanent members, the United Nations Security Council today failed to adopt a draft resolution which urged countries not to recognize the results of this weekend's referendum in Crimea.
Thirteen of the Council's 15 members voted in favour of the draft text, Russia voted against, and China abstained. A veto by any of the Council's five permanent members – China, France, Russia, the United Kingdom and the United States – means a resolution cannot be adopted.
United Nations News Centre - UN Security Council action on Crimea referendum blocked
Only the Russian veto prevented the unanimous passing of the latter.