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Attribution — You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
Share Alike — If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one.
With the understanding that:
A new version of this license is available. You should use it for new works, and you may want to relicense existing works under it. No works are automatically put under the new license, however.
CC licenses anticipate that a licensor may want to waive compliance with a specific condition, such as attribution.
All jurisdictions allow some limited uses of copyrighted material without permission. CC licenses do not affect the rights of users under those copyright limitations and exceptions, such as fair use and fair dealing where applicable.
In addition to the right of licensors to request removal of their name from the work when used in a derivative or collective they don't like, copyright laws in most jurisdictions around the world (with the notable exception of the US except in very limited circumstances) grant creators "moral rights" which may provide some redress if a derivative work represents a "derogatory treatment" of the licensor's work.
Publicity rights allow individuals to control how their voice, image or likeness is used for commercial purposes in public. If a CC-licensed work includes the voice or image of anyone other than the licensor, a user of the work may need to get permission from those individuals before using the work for commercial purposes.

