prelink: is it worth it?

[Till Maas]

On Thu July 9 2009, yersinia wrote:

> But something one have to pay a security prize on not disabling it :  it
> render impossible to have a
> centralizzated security integrity management (e.g. rfc.sf.net for example)
> or one have to skip from check the prelink binary. Very bad i think.

You pay a security prize if you disable prelink, because it also performs 
address space randomization:
http://lwn.net/Articles/190139/

Btw. you can also patch the remote integrity checker to use prelink to either 
get a checksum of the perlinked binary or undo the prelinking before checking 
it.

Regards
Till
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